Update: minor clean up on 2 docs

[suspect15]

Removes and errant hyphen from "8 bytes" in the Code Note doc and a trailing ** when something was changed from bolded to an info box in the Refactor Requirements doc.

[greptile-apps]

Confidence Score: 5/5

[Low risk] Minor formatting fixes in documentation files.

The PR appears safe to merge.

Summary

Corrects an 8-byte notation example and removes stray Markdown.

_{Reviews (1) · Last reviewed commit: "Update: minor clean up on 2 docs"}