docs: Update contact information and CI email (arch -> frontend WG) (#147)

Author: timmc-edx

.github/workflows/ci.yml

@@ -38,6 +38,6 @@ jobs:
           username: ${{secrets.EDX_SMTP_USERNAME}}
           password: ${{secrets.EDX_SMTP_PASSWORD}}
           subject: CI workflow failed in ${{github.repository}}
-          to: arch-team@edx.org
+          to: frontend-working-group@edx.org
           from: github-actions <[email protected]>
           body: CI workflow in ${{github.repository}} failed! For details see "github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"

README.rst

@@ -67,11 +67,10 @@ and make changes. Then include it before you include edx-bootstrap::
 
 Getting Help
 ------------
-If you’re having trouble, contact the arch squad on Slack:
+If you’re having trouble, you can ask in the front-end channel on Slack or contact the Frontend Working Group:
 
 - `#front-end <https://openedx.slack.com/messages/C0EUBSV7D>`_
-- `#architecture <https://openedx.slack.com/messages/C0RU5BTCP>`_
--  edX Internal: #arch-team
+- `#frontend-working-group <https://openedx.slack.com/messages/C02BMP2RD5Y>`_
 
 License
 -------