refactor: updated README file to reflect template changes

[Mashal-m]

Description

The README of the MFEs needs to be updated because the frontend app template has been updated.

Issue related: https://github.com/openedx/wg-frontend/issues/169

How Has This Been Tested?

Please describe in detail how you tested your changes.

Screenshots/sandbox (optional):

Include a link to the sandbox for design changes or screenshot for before and after. Remove this section if it's not applicable.

Before	After

Merge Checklist

• [ ] If your update includes visual changes, have they been reviewed by a designer? Send them a link to the Sandbox, if applicable.
• [ ] Is there adequate test coverage for your changes?

Post-merge Checklist

• [ ] Deploy the changes to prod after verifying on stage or ask @openedx/edx-infinity to do it.
• [ ] 🎉 🙌 Celebrate! Thanks for your contribution.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (1cb8ad3) 92.32% compared to head (95d5cf0) 92.32%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #592 +/- ## ======================================= Coverage 92.32% 92.32% ======================================= Files 169 169 Lines 3451 3451 Branches 899 899 ======================================= Hits 3186 3186 Misses 244 244 Partials 21 21 ```

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[sundasnoreen12]

@Mashal-m Please resolve the conflict in the README.rst file. Once this is done, I will perform a final review.

[Mashal-m]

@Mashal-m Please resolve the conflict in the README.rst file. Once this is done, I will perform a final review.

conflicts resolved!