Fix Typos in README Files

[Dimitrolito]

Summary

• Categories: docs

This pull request corrects several typos in README files across the project. These changes ensure grammatical correctness and improve readability.

Changelog

• Fixed redundant article usage in Follower Node documentation ("the a Follower Node" → "the Follower Node").
• Corrected double article in bridge modules documentation ("to an a already-assigned named address" → "to an already-assigned named address").
• Adjusted possessive article in Godfig documentation ("It's original backends is file-based" → "Its original backends are file-based").

Testing

• Verified that the corrections maintain the intended meaning of the text.
• Reviewed changes to ensure no additional grammatical or typographical errors were introduced.