Add information about redirects

Author: zyv

README.md

@@ -6,3 +6,15 @@ This website is made with [MkDocs](https://www.mkdocs.org) and [Material for MkD
 $ uv sync --all-extras --dev
 $ uv run mkdocs serve
 ```
+
+## Redirects
+
+The following redirects have been implemented in `mkdocs.yml`:
+
+* All basic Trac pages (`wiki`, `browser`, `log`, etc.)
+* Ticket redirects (`ticket/*`, statically generated)
+
+The following redirects are probably not worth the effort:
+
+* `attachment/*` / `raw-attachment/*`, see the [trac-archive repository](https://github.com/MidnightCommander/trac-archive)
+* `milestone/*`, see the [mc repository](https://github.com/MidnightCommander/mc/milestones)