Update project charter template (#1078)

* Add links to project charters in README
* Change examples for guiding principles of project charters

PROJECT_CHARTER_TEMPLATE.md

@@ -11,7 +11,8 @@ _OpenJS Foundation's governance._
 _directions: provide a concise, high-level statement about_
 _the project's long-term principles, values, or mission._
 
-ex. [Node.js TSC Charter](https://github.com/nodejs/TSC/blob/HEAD/TSC-Charter.md#section-1-guiding-principle)
+ex. [Electron Governance Charter](https://github.com/electron/governance/tree/main/charter#core-values)
+ex. [AMP Charter](https://github.com/ampproject/meta/blob/main/CHARTER.md#section-0-guiding-principles-optional)
 
 ## Section 1: Scope
 

README.md

@@ -25,7 +25,7 @@ The following projects are official OpenJS Foundation projects. If you are inter
 |-|----------------|:-----------------:|:------------------:|:---------------------:|
 | <img alt="logo of project Appium" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/appium/appium-icon-color.svg" width="30" /> | [Appium](https://appium.io/)       |      | [Contributing Guide](https://github.com/appium/appium/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://github.com/appium/appium/blob/HEAD/CONDUCT.md) |
 | <img alt="logo of project Dojo" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/dojo/dojo-icon-color.svg" width="30" /> | [Dojo](https://dojo.io/)               |      | [Contributing Guide](https://github.com/dojo/framework/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://github.com/dojo/framework/blob/HEAD/CODE_OF_CONDUCT.md) |
-| <img alt="logo of project Electron" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/electron/electron-icon-color.svg" width="30" /> | [Electron](https://electronjs.org) |      | [Contributing Guide](https://github.com/electron/electron/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://github.com/electron/electron/blob/HEAD/CODE_OF_CONDUCT.md) |
+| <img alt="logo of project Electron" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/electron/electron-icon-color.svg" width="30" /> | [Electron](https://electronjs.org) | [Charter](https://github.com/electron/governance/tree/main/charter) | [Contributing Guide](https://github.com/electron/electron/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://github.com/electron/electron/blob/HEAD/CODE_OF_CONDUCT.md) |
 | <img alt="logo of project jQuery" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/jquery/jquery-icon-color.svg" width="30" /> | [jQuery](https://jquery.com/)      |      | [Contributing Guide](https://github.com/jquery/jquery/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://github.com/openjs-foundation/cross-project-council/blob/HEAD/CODE_OF_CONDUCT.md) |
 | <img alt="logo of project Node.js" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/nodejs/nodejs-icon-color.svg" width="30" /> | [Node.js](https://nodejs.org)      |      | [Contributing Guide](https://github.com/nodejs/node/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://github.com/nodejs/node/blob/HEAD/doc/contributing/code-of-conduct.md) |
 | <img alt="logo of project webpack" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/webpack/webpack-icon-color.svg" width="30" /> | [webpack](https://webpack.js.org/) |      | [Contributing Guide](https://github.com/webpack/webpack/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://github.com/webpack/webpack/blob/HEAD/CODE_OF_CONDUCT.md) |
@@ -34,7 +34,7 @@ The following projects are official OpenJS Foundation projects. If you are inter
 
 | | Project        | Charter           | Contributing       | Code of Conduct       |
 |-|----------------|:-----------------:|:------------------:|:---------------------:|
-| <img alt="logo of AMP project" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/amp/amp-icon-color.svg" width="30" /> | [AMP](https://amp.dev/)                |       | [Contributing Guide](https://github.com/ampproject/amphtml/blob/HEAD/docs/contributing.md) | [Code of Conduct](https://github.com/ampproject/meta/blob/HEAD/CODE_OF_CONDUCT.md) |
+| <img alt="logo of AMP project" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/amp/amp-icon-color.svg" width="30" /> | [AMP](https://amp.dev/) | [Charter](https://github.com/ampproject/meta/blob/main/CHARTER.md) | [Contributing Guide](https://github.com/ampproject/amphtml/blob/HEAD/docs/contributing.md) | [Code of Conduct](https://github.com/ampproject/meta/blob/HEAD/CODE_OF_CONDUCT.md) |
 | <img alt="logo of project architect" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/architect/architect-icon-grayscale.svg" width="30" /> | [architect](https://arc.codes/)         |   |  [Contributing Guide](https://github.com/architect/architect/blob/HEAD/.github/contributing.md)   | [Code of Conduct](https://github.com/architect/architect/blob/HEAD/.github/code_of_conduct.md) |
 | <img alt="logo of project ESLint" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/eslint/eslint-icon-color.svg" width="30" /> | [ESLint](https://eslint.org/)              |    | [Contributing Guide](https://github.com/eslint/eslint/blob/HEAD/CONTRIBUTING.md) | [Code of Conduct](https://eslint.org/conduct) |
 | <img alt="logo of project Esprima" src="https://github.com/openjs-foundation/artwork/raw/HEAD/projects/esprima/esprima-icon-color.svg" width="30" /> | [Esprima](https://esprima.org/)            |    | [Contributing Guide](https://github.com/jquery/esprima/blob/HEAD/CONTRIBUTING.md) |  |