Add governance documents (#688)

* add governance docs based on MVG
* add termination of membership to governance.md. add previous maintainers to maintainers.md
* add ras44 to maintainers.md as discussed

ANTITRUST.md

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+# Antitrust Policy
+
+Participants acknowledge that they may compete with other participants in various lines of business and that it is therefore imperative that they and their respective representatives act in a manner that does not violate any applicable antitrust laws, competition laws, or associated regulations. This Policy does not restrict any participant from engaging in other similar projects. Each participant may design, develop, manufacture, acquire or market competitive deliverables, products, and services, and conduct its business, in whatever way it chooses. No participant is obligated to announce or market any products or services. Without limiting the generality of the foregoing, participants agree not to have any discussion relating to any product pricing, methods or channels of product distribution, contracts with third-parties, division or allocation of markets, geographic territories, or customers, or any other topic that relates in any way to limiting or lessening fair competition.
+
+---
+Part of [MVG-0.1-beta](https://github.com/github/MVG/tree/v0.1-beta).
+Made with love by GitHub. Licensed under the [CC-BY 4.0 License](https://creativecommons.org/licenses/by-sa/4.0/).

CHARTER.md

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+# Charter for the CausalML Organization
+
+This is the organizational charter for the CausalML Organization (the "Organization"). By adding their name to the [Steering Committee.md file](./STEERING-COMMITTEE.md), Steering Committee members agree as follows.
+
+## 1. Mission
+
+CausalML is committed to democratizing causal machine learning through accessible, innovative, and well-documented open-source tools that empower data scientists, researchers, and organizations. At our core, we embrace inclusivity and foster a vibrant community where members exchange ideas, share knowledge, and collaboratively shape a future where CausalML drives advancements across diverse domains.
+
+## 2. Steering Committee
+
+**2.1 Purpose**. The Steering Committee will be responsible for all technical oversight, project approval and oversight, policy oversight, and trademark management for the Organization.
+
+**2.2 Composition**. The Steering Committee voting members are listed in the steering-committee.md file in the repository.
+Voting members may be added or removed by no less than 3/4 affirmative vote of the Steering Committee.
+The Steering Committee will appoint a Chair responsible for organizing Steering Committee activity.
+
+## 3. Voting
+
+**3.1. Decision Making**. The Steering Committee will strive for all decisions to be made by consensus. While explicit agreement of the entire Steering Committee is preferred, it is not required for consensus. Rather, the Steering Committee will determine consensus based on their good faith consideration of a number of factors, including the dominant view of the Steering Committee and nature of support and objections. The Steering Committee will document evidence of consensus in accordance with these requirements. If consensus cannot be reached, the Steering Committee will make the decision by a vote.
+
+**3.2. Voting**. The Steering Committee Chair will call a vote with reasonable notice to the Steering Committee, setting out a discussion period and a separate voting period. Any discussion may be conducted in person or electronically by text, voice, or video. The discussion will be open to the public. In any vote, each voting representative will have one vote. Except as specifically noted elsewhere in this Charter, decisions by vote require a simple majority vote of all voting members.
+
+## 4. Termination of Membership
+
+In addition to the method set out in section 2.2, the membership of a Steering Committee member will terminate if any of the following occur:
+
+**4.1 Resignation**. Written notice of resignation to the Steering Committee.
+
+**4.2 Unreachable Member**. If a member is unresponsive at its listed handle for more than three months the Steering Committee may vote to remove the member.
+
+## 5. Trademarks
+
+Any names, trademarks, service marks, logos, mascots, or similar indicators of source or origin and the goodwill associated with them arising out of the Organization's activities or Organization projects' activities (the "Marks"), are controlled by the Organization. Steering Committee members may only use the Marks in accordance with the Organization's [trademark policy](./TRADEMARKS.md). If a Steering Committee member is terminated or removed from the Steering Committee, any rights the Steering Committee member may have in the Marks revert to the Organization.
+
+## 6. Antitrust Policy
+
+The Steering Committee is bound by the Organization's [antitrust policy](./ANTITRUST.md).
+
+## 7. No Confidentiality
+
+Information disclosed in connection with any of the Organization's activities, including but not limited to meetings, Contributions, and submissions, is not confidential, regardless of any markings or statements to the contrary.
+
+## 8. Amendments
+
+Amendments to this charter, the [antitrust policy](./ANTITRUST.md), the [trademark policy](./TRADEMARKS.md), or the [code of conduct](./CODE-OF-CONDUCT.md) may only be made with at least a 3/4 affirmative vote of the Steering Committee.
+
+---
+Adapted from [MVG-0.1-beta](https://github.com/github/MVG/tree/v0.1-beta).
+Made with love by GitHub. Licensed under the [CC-BY 4.0 License](https://creativecommons.org/licenses/by-sa/4.0/).

GOVERNANCE.md

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+# Governance Policy
+
+This document provides the governance policy for the Project. Maintainers agree to this policy and to abide by all Project polices, including the [code of conduct](./CODE-OF-CONDUCT.md), [trademark policy](./TRADEMARKS.md), and [antitrust policy](./ANTITRUST.md) by adding their name to the [maintainers.md file](./MAINTAINERS.md).
+
+## 1. Roles.
+
+This project may include the following roles. Additional roles may be adopted and documented by the Project.
+
+**1.1. Maintainers**. Maintainers are responsible for organizing activities around developing, maintaining, and updating the Project. Maintainers are also responsible for determining consensus. This Project may add or remove Maintainers with the approval of the current Maintainers.
+
+**1.2. Contributors**. Contributors are those that have made contributions to the Project.
+
+## 2. Decisions.
+
+**2.1. Consensus-Based Decision Making**. Projects make decisions through consensus of the Maintainers. While explicit agreement of all Maintainers is preferred, it is not required for consensus. Rather, the Maintainers will determine consensus based on their good faith consideration of a number of factors, including the dominant view of the Contributors and nature of support and objections. The Maintainers will document evidence of consensus in accordance with these requirements.
+
+**2.2. Appeal Process**. Decisions may be appealed by opening an issue and that appeal will be considered by the Maintainers in good faith, who will respond in writing within a reasonable time. If the Maintainers deny the appeal, the appeal may be brought before the Organization Steering Committee, who will also respond in writing in a reasonable time.
+
+
+## 3. Termination of Membership
+
+The membership of a Maintainer will terminate if any of the following occur:
+
+**3.1 Resignation**. Written notice of resignation to the Maintainers.
+
+**3.2 Unreachable Member**. If a member is unresponsive at its listed handle for more than three months the Maintainers may vote to remove the member.
+
+## 4. How We Work.
+
+**4.1. Openness**. Participation is open to anyone who is directly and materially affected by the activity in question. There shall be no undue financial barriers to participation.
+
+**4.2. Balance**. The development process should balance the interests of Contributors and other stakeholders. Contributors from diverse interest categories shall be sought with the objective of achieving balance.
+
+**4.3. Coordination and Harmonization**. Good faith efforts shall be made to resolve potential conflicts or incompatibility between releases in this Project.
+
+**4.4. Consideration of Views and Objections**. Prompt consideration shall be given to the written views and objections of all Contributors.
+
+**4.5. Written procedures**. This governance document and other materials documenting this project's development process shall be available to any interested person.
+
+## 5. No Confidentiality.
+
+Information disclosed in connection with any Project activity, including but not limited to meetings, contributions, and submissions, is not confidential, regardless of any markings or statements to the contrary.
+
+## 6. Trademarks.
+
+Any names, trademarks, logos, or goodwill developed by and associated with the Project (the "Marks") are controlled by the Organization. Maintainers may only use these Marks in accordance with the Organization's trademark policy. If a Maintainer resigns or is removed, any rights the Maintainer may have in the Marks revert to the Organization.
+
+## 7. Amendments.
+
+Amendments to this governance policy may be made by affirmative vote of 2/3 of all Maintainers, with approval by the Organization's Steering Committee.
+
+---
+Adapted from [MVG-0.1-beta](https://github.com/github/MVG/tree/v0.1-beta).
+Made with love by GitHub. Licensed under the [CC-BY 4.0 License](https://creativecommons.org/licenses/by-sa/4.0/).

MAINTAINERS.md

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+# Maintainers
+
+This document lists the Maintainers of the Project. Maintainers may be added once approved by the existing maintainers as described in the [Governance document](./GOVERNANCE.md). By adding your name to this list you are agreeing to abide by the Project governance documents and to abide by all of the Organization's polices, including the [code of conduct](./CODE-OF-CONDUCT.md), [trademark policy](./TRADEMARKS.md), and [antitrust policy](./ANTITRUST.md). If you are participating because of your affiliation with another organization (designated below), you represent that you have the authority to bind that organization to these policies.
+
+| **NAME** | **Handle** |
+| --- | --- |
+| Huigang Chen | @huigangchen |
+| Totte Harinen | @t-tte |
+| Jeong-Yoon Lee | @jeongyoonlee |
+| Paul Lo | @paullo0106 |
+| Jing Pan | @ppstacy |
+| Roland Stevenson | @ras44 |
+| Yifeng Wu | @vincewu51 |
+| Zhenyu Zhao | @zhenyuz0500 |
+
+## Previous Maintainers
+
+| **NAME** | **Handle** |
+| --- | --- |
+| Mike Yung | @yungmsh |
+| Yuchen Luo | @yluogit |
+| Steve Yang | @steveyang90 |
+
+---
+Adapted from [MVG-0.1-beta](https://github.com/github/MVG/tree/v0.1-beta).
+Made with love by GitHub. Licensed under the [CC-BY 4.0 License](https://creativecommons.org/licenses/by-sa/4.0/).

STEERING-COMMITTEE.md

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+# Steering Committee
+
+This document lists the members of the Organization's Steering Committee. Voting members may be added once approved by the Steering Committee as described in the [charter](./CHARTER.md). By adding your name to this list you are agreeing to abide by all Organization polices, including the [charter](./CHARTER.md), the [code of conduct](./CODE-OF-CONDUCT.md), the [trademark policy](./TRADEMARKS.md), and the [antitrust policy](./ANTITRUST.md). If you are serving on the Steering Committee because of your affiliation with another organization (designated below), you represent that you have authority to bind that organization to these policies.
+
+| **NAME** | **Handle** | **Affiliated Organization** |
+| --- | --- | --- |
+| Huigang Chen | @huigangchen | Meta |
+| Totte Harinen | @t-tte | AirBnB |
+| Jeong-Yoon Lee | @jeongyoonlee | Uber |
+| Zhenyu Zhao | @zhenyuz0500 | Tencent |
+
+---
+Adapted from [MVG-0.1-beta](https://github.com/github/MVG/tree/v0.1-beta).
+Made with love by GitHub. Licensed under the [CC-BY 4.0 License](https://creativecommons.org/licenses/by-sa/4.0/).

TRADEMARKS.md

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+## Introduction
+
+This is the Organization's policy for the use of our trademarks. While our work is available under free and open source software licenses, those licenses do not include a license to use our trademarks.
+
+This policy describes how you may use our trademarks.  Our goal is to strike a balance between: 1) our need to ensure that our trademarks remain reliable indicators of the quality software we release; and 2) our community members' desire to be full participants in our Organization.
+
+## Our Trademarks
+
+This policy covers the name of the Organization and each of the Organization's projects, as well as any associated names, trademarks, service marks, logos, mascots, or similar indicators of source or origin (our "Marks").
+
+## In General
+
+Whenever you use our Marks, you must always do so in a way that does not mislead anyone about exactly who is the source of the software. For example, you cannot say you are distributing the "Mark" software when you're distributing a modified version of it because people will believe they are getting the same software that they can get directly from us when they aren't. You also cannot use our Marks on your website in a way that suggests that your website is an official Organization website or that we endorse your website. But, if true, you can say you like the "Mark" software, that you participate in the "Mark" community, that you are providing an unmodified version of the "Mark" software, or that you wrote a book describing how to use the "Mark" software.
+
+This fundamental requirement, that it is always clear to people what they are getting and from whom, is reflected throughout this policy. It should also serve as your guide if you are not sure about how you are using the Marks.
+
+In addition:
+* You may not use or register, in whole or in part, the Marks as part of your own trademark, service mark, domain name, company name, trade name, product name or service name.
+* Trademark law does not allow your use of names or trademarks that are too similar to ours. You therefore may not use an obvious variation of any of our Marks or any phonetic equivalent, foreign language equivalent, takeoff, or abbreviation for a similar or compatible product or service.
+* You agree that any goodwill generated by your use of the Marks and participation in our community inures solely to our collective benefit.
+
+## Distribution of unmodified source code or unmodified executable code we have compiled
+
+When you redistribute an unmodified copy of our software, you are not changing the quality or nature of it. Therefore, you may retain the Marks we have placed on the software to identify your redistribution. This kind of use only applies if you are redistributing an official distribution from this Project that has not been changed in any way.
+
+## Distribution of executable code that you have compiled, or modified code
+
+You may use any word marks, but not any Organization logos, to truthfully describe the origin of the software that you are providing, that is, that the code you are distributing is a modification of our software. You may say, for example, that "this software is derived from the source code for 'Mark' software."
+
+Of course, you can place your own trademarks or logos on versions of the software to which you have made substantive modifications, because by modifying the software, you have become the origin of that exact version. In that case, you should not use our Marks.
+
+However, you may use our Marks for the distribution of code (source or executable) on the condition that any executable is built from the official Project source code and that any modifications are limited to switching on or off features already included in the software, translations into other languages, and incorporating minor bug-fix patches. Use of our Marks on any further modification is not permitted.
+
+## Statements about your software's relation to our software
+
+You may use the word Marks, but not the Organization's logos, to truthfully describe the relationship between your software and ours. Our Mark should be used after a verb or preposition that describes the relationship between your software and ours. So you may say, for example, "Bob's software for the 'Mark' platform" but may not say "Bob's 'Mark' software." Some other examples that may work for you are:
+
+* [Your software] uses "Mark" software
+* [Your software] is powered by "Mark" software
+* [Your software] runs on "Mark" software
+* [Your software] for use with "Mark" software
+* [Your software] for Mark software
+
+These guidelines are based on the [Model Trademark Guidelines](http://www.modeltrademarkguidelines.org), used under a [Creative Commons Attribution 3.0 Unported license](https://creativecommons.org/licenses/by/3.0/deed.en_US)