Tech Wizards Unite! Documentation Goes from Drab to Fab with Crucial Typo Fix

A minor correction sparks major improvements in clarity and accuracy, enhancing the synchronization process across systems.

Commit Details:

fix: typos in documentation files (#2481) This pull request contains changes to improve clarity, correctness and structure. **Description correction:** Corrected `singerAdd` to `signerAdd` x2 Please review the changes and let me know if any additional changes are needed. <!-- start pr-codex --> --- ## PR-Codex overview This PR focuses on correcting a typo in the comments of the `multiPeerSyncEngine.test.ts` file, changing "singerAdd" to "signerAdd" to ensure clarity regarding the synchronization process between `syncEngine1` and `syncEngine2`. ### Detailed summary - Corrected the comment from "singerAdd" to "signerAdd" in two instances to accurately reflect the functionality of `syncEngine1`. > ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}` <!-- end pr-codex -->