Update edx.rtd.io links to docs.openedx.org (openedx#1654)

* docs: Update edx.rtd links to their new homes

* docs: Update README to not prescribe a version of Node

Author: sarina

.env.development

@@ -8,7 +8,7 @@ APP_ID='learning'
 BASE_URL='http://localhost:2000'
 CONTACT_URL='http://localhost:18000/contact'
 CREDENTIALS_BASE_URL='http://localhost:18150'
-CREDIT_HELP_LINK_URL='https://edx.readthedocs.io/projects/edx-guide-for-students/en/latest/SFD_credit_courses.html#keep-track-of-credit-requirements'
+CREDIT_HELP_LINK_URL='https://help.edx.org/edxlearner/s/article/Can-I-receive-college-credit-or-credit-hours-for-my-course'
 CSRF_TOKEN_API_PATH='/csrf/api/v1/token'
 DISCOVERY_API_BASE_URL='http://localhost:18381'
 DISCUSSIONS_MFE_BASE_URL='http://localhost:2002'

.env.test

@@ -8,7 +8,7 @@ APP_ID='learning'
 BASE_URL='http://localhost:2000'
 CONTACT_URL='http://localhost:18000/contact'
 CREDENTIALS_BASE_URL='http://localhost:18150'
-CREDIT_HELP_LINK_URL='https://edx.readthedocs.io/projects/edx-guide-for-students/en/latest/SFD_credit_courses.html#keep-track-of-credit-requirements'
+CREDIT_HELP_LINK_URL='https://help.edx.org/edxlearner/s/article/Can-I-receive-college-credit-or-credit-hours-for-my-course'
 CSRF_TOKEN_API_PATH='/csrf/api/v1/token'
 DISCOVERY_API_BASE_URL='http://localhost:18381'
 DISCUSSIONS_MFE_BASE_URL='http://localhost:2002'

README.rst

@@ -41,9 +41,8 @@ Cloning and Setup
 
     git clone https://github.com/openedx/frontend-app-learning.git
 
-2. Use node v20.x.
+2. Use the version of Node specified in ``.nvmrc``.
 
-  The current version of the micro-frontend build scripts supports 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>`_.
@@ -131,7 +130,7 @@ Deployment
 
 The Learning MFE is similar to all the other Open edX MFEs. Read the Open
 edX Developer Guide's section on
-`MFE applications <https://edx.readthedocs.io/projects/edx-developer-docs/en/latest/developers_guide/micro_frontends_in_open_edx.html>`_.
+`MFE applications <https://openedx.github.io/frontend-platform/>`_.
 
 Plugins
 =======
@@ -145,7 +144,7 @@ Environment Variables
 This MFE is configured via environment variables supplied at build time.
 All micro-frontends have a shared set of required environment variables,
 as documented in the Open edX Developer Guide under
-`Required Environment Variables <https://edx.readthedocs.io/projects/edx-developer-docs/en/latest/developers_guide/micro_frontends_in_open_edx.html#required-environment-variables>`_.
+`Required Environment Variables <https://openedx.github.io/frontend-platform/>`_.
 
 The learning micro-frontend also supports the following additional variables: