Sylvestre Ledru
64265ce0ec
Fix broken MyST cross-references surfaced by ./mach doc that predate the
RST-to-Markdown conversion:
- backend/protocol.md: correct the anchor slug for "Finding an Object's
Prototype and Properties" (the apostrophe is dropped, not turned into a
hyphen).
- performance/react-performance-tips.md: drop a fragment pointing at a
performance.md section that was removed in bug 1967741.
- contributor/contributing.md: use a {doc} reference for the
filing-good-bugs guide instead of a root-relative .html link that MyST
cannot resolve.
Differential Revision: https://phabricator.services.mozilla.com/D308384