[translation]: Update Russian translations for contributing documentations

Update the following in Russian from their English version available in /docs directory:

• /docs/russian/CONTRIBUTING.md from its english version at /CONTRIBUTING.md

• /docs/russian/README.md from its english version at /docs/README.md

• /docs/russian/how-to-catch-outgoing-emails-locally.md from its english version at /docs/how-to-catch-outgoing-emails-locally.md

• /docs/russian/how-to-setup-freecodecamp-locally.md from its english version at /docs/how-to-setup-freecodecamp-locally.md

• /docs/russian/how-to-work-on-coding-challenges.md from its english version at /docs/how-to-work-on-coding-challenges.md

• /docs/russian/how-to-work-on-guide-articles.md from its english version at /docs/how-to-work-on-guide-articles.md

Once you are ready please make a pull request, preferably one for each file.

[3CatMax]

#28207 Fixes the html links in the top language bar for all language README docs. Not a translation, but just link fixes. Once the Russian README files get merged, we can add the markdown style for links to all the articles in Russian too!

[raisedadead]

Thanks for working on the translations for the “Contributing to freeCodeCamp”. Here on we are making contributing to translations for contribution docs ad hoc.

You are free to make pull-requests for improving these translations. We are closing the issue as these do not need tracking per se.

You can raise a fresh issue if you find something incorrect in the existing docs.