[DOCS] Readme updated according OEP-55 (#194)

* docs: README updated

* docs: update some badges and content

* fix: getting help url

---------

Co-authored-by: Edward Zarecor <ezarecor@tcril.org>
Co-authored-by: Matthew Carter <mcarter@edx.org>

README.rst

@@ -1,7 +1,8 @@
 frontend-app-ora-grading
-########################
+#############################
+
+|license-badge| |status-badge| |ci-badge| |codecov-badge|
 
-|ci-badge| |codecov-badge| |doc-badge| |license-badge| |status-badge|
 
 Purpose
 *******
@@ -22,25 +23,56 @@ app in ``edx-platform``.
 Getting Started
 ***************
 
+Prerequisites
+=============
+
+The `devstack`_ is currently recommended as a development environment for your
+new MFE.  If you start it with ``make dev.up.lms`` that should give you
+everything you need as a companion to this frontend.
+
+Note that it is also possible to use `Tutor`_ to develop an MFE.  You can refer
+to the `relevant tutor-mfe documentation`_ to get started using it.
+
+.. _Devstack: https://github.com/openedx/devstack
+
+.. _Tutor: https://github.com/overhangio/tutor
+
+.. _relevant tutor-mfe documentation: https://github.com/overhangio/tutor-mfe#mfe-development
+
 Developing
 ==========
 
-One Time Setup
+Cloning and Startup
 --------------
 
 First, clone the repo, install code prerequisites, and start the app.
 
 .. code-block::
 
-  # Clone the repository
-  git clone git@github.com:openedx/frontend-app-ora-grading.git
-  cd frontend-app-ora-grading
 
-  # Install prerequisites
-  npm install
+  1. Clone your new repo:
+
+  ``git clone git@github.com:openedx/frontend-app-ora-grading.git``
 
-  # Start the MFE
-  npm run start
+  2. Use node v18.x.
+
+    The current version of the micro-frontend build scripts support node 18.
+    Using other major versions of node *may* work, but this is unsupported.  For
+    convenience, this repository includes an .nvmrc file to help in setting the
+    correct node version via `nvm <https://github.com/nvm-sh/nvm>`_.
+
+  3. Install npm dependencies:
+
+    ``cd frontend-app-ora-grading && npm install``
+
+  4. Update the application port to use for local development:
+
+    Default port is 1993. If this does not work for you, update the line
+    `PORT=1993` to your port in all .env.* files
+
+  5. Start the dev server:
+
+    ``npm start``
 
 The app will, by default, run on `http://localhost:1993` unless otherwise
 specified in ``.env.development:PORT`` and ``.env.development:BASE_URL``.
@@ -112,24 +144,24 @@ the `MFE production deployment guide`_
 
 .. _MFE production deployment guide: https://openedx.github.io/frontend-platform/#production-deployment-strategy
 
-Getting Help
-************
-
-Documentation
-=============
+Internationalization
+====================
 
-See `ORA Staff Grading on ReadTheDocs`_ for more in-depth usage information.
+Please see refer to the `frontend-platform i18n howto`_ for documentation on
+internationalization.
 
-.. _ORA Staff Grading on ReadTheDocs: https://edx.readthedocs.io/projects/edx-partner-course-staff/en/latest/exercises_tools/open_response_assessments/ORA_Staff_Grading.html#ora-staff-grading
+.. _frontend-platform i18n howto: https://github.com/openedx/frontend-platform/blob/master/docs/how_tos/i18n.rst
 
-More Help
-=========
+Getting Help
+************
 
 If you're having trouble, we have discussion forums at
 https://discuss.openedx.org where you can connect with others in the community.
 
 Our real-time conversations are on Slack. You can request a `Slack
-invitation`_, then join our `community Slack workspace`_.
+invitation`_, then join our `community Slack workspace`_.  Because this is a
+frontend repository, the best place to discuss it would be in the `#wg-frontend
+channel`_.
 
 For anything non-trivial, the best path is to open an issue in this repository
 with as many details about the issue you are facing as you can provide.
@@ -140,27 +172,30 @@ For more information about these options, see the `Getting Help`_ page.
 
 .. _Slack invitation: https://openedx.org/slack
 .. _community Slack workspace: https://openedx.slack.com/
-.. _Getting Help: https://openedx.org/getting-help
+.. _#wg-frontend channel: https://openedx.slack.com/archives/C04BM6YC7A6
+.. _Getting Help: https://openedx.org/community/connect
 
 License
 *******
 
-The code in this repository is licensed under the GNU Affero General Public
-License v3.0 unless otherwise noted.
+The code in this repository is licensed under the AGPLv3 unless otherwise
+noted.
 
 Please see `LICENSE <LICENSE>`_ for details.
 
 Contributing
 ************
 
-This project is currently only accepting bug fixes, security fixes, and 
-maintenance work. New features should be discussed in advance with the owning
-team and added to the public roadmap or they may not be accepted. You can start
-a conversation by creating a new issue on this repo summarizing your feature
-idea.
+Contributions are very welcome.  Please read `How To Contribute`_ for details.
 
-Please read `How To Contribute <https://openedx.org/r/how-to-contribute>`_ for
-details.
+.. _How To Contribute: https://openedx.org/r/how-to-contribute
+
+This project is currently accepting all types of contributions, bug fixes,
+security fixes, maintenance work, or new features.  However, please make sure
+to have a discussion about your new feature idea with the maintainers prior to
+beginning development to maximize the chances of your change being accepted.
+You can start a conversation by creating a new issue on this repo summarizing
+your idea.
 
 The Open edX Code of Conduct
 ****************************
@@ -181,22 +216,18 @@ file in this repo.
 Reporting Security Issues
 *************************
 
-Please do not report security issues in public. Please email security@openedx.org.
+Please do not report security issues in public, and email security@openedx.org instead.
+
+.. |license-badge| image:: https://img.shields.io/github/license/openedx/frontend-app-ora-grading.svg
+    :target: https://github.com/openedx/frontend-app-ora-grading/blob/master/LICENSE
+    :alt: License
+
+.. |status-badge| image:: https://img.shields.io/badge/Status-Maintained-brightgreen
 
 .. |ci-badge| image:: https://github.com/openedx/frontend-app-ora-grading/actions/workflows/ci.yml/badge.svg
     :target: https://github.com/openedx/frontend-app-ora-grading/actions/workflows/ci.yml
-    :alt: CI
+    :alt: Continuous Integration
 
 .. |codecov-badge| image:: https://codecov.io/github/openedx/frontend-app-ora-grading/coverage.svg?branch=master
     :target: https://codecov.io/github/openedx/frontend-app-ora-grading?branch=master
     :alt: Codecov
-
-.. |doc-badge| image:: https://readthedocs.org/projects/frontend-app-ora-grading/badge/?version=latest
-    :target: https://edx.readthedocs.io/projects/edx-partner-course-staff/en/latest/exercises_tools/open_response_assessments/ORA_Staff_Grading.html
-    :alt: Documentation
-
-.. |license-badge| image:: https://img.shields.io/github/license/openedx/frontend-app-ora-grading.svg
-    :target: https://github.com/openedx/frontend-app-ora-grading/blob/master/LICENSE
-    :alt: License
-
-.. |status-badge| image:: https://img.shields.io/badge/Status-Maintained-brightgreen