update doc structure

tools/release-readme.md

@@ -46,11 +46,11 @@ tar --extract --zstd --same-permissions --no-same-owner \
   --file fds-source-0.1.0.tar.zst --directory source
 ```
 
-Start with [the project overview](source/README.md),
-[installation](source/docs/internal-storage.md), and
-[everyday cartridge use](source/docs/cartridges.md). The copied standalone guides
-retain their source-relative cross-references; the copies under `source/docs/`
-provide the complete linked documentation.
+Start with [the project overview](source/fds-os.wiki/Overview.md),
+[installation](source/fds-os.wiki/Internal-Storage.md), and
+[everyday cartridge use](source/fds-os.wiki/Cartridges.md). The complete manual is included under `source/fds-os.wiki/`. Page links use
+Gitea wiki names: for offline reading, open the corresponding `.md` file in
+that directory. The standalone guides are copies from the same wiki snapshot.
 
 ## Rebuild from the preserved inputs
 
@@ -75,5 +75,5 @@ Use new directories and paths without whitespace. The restored build has its
 recorded modes preserved by `--same-permissions`; `--no-same-owner` keeps the
 files owned by the ordinary build user. Its compiler and package environment use
 their own caches and have no network access. Host prerequisites and additional comparison
-instructions are in [Offline rebuilds](source/docs/developer/reproducible-builds.md).
+instructions are in [Offline rebuilds](source/fds-os.wiki/Developer-Reproducible-Builds.md).
 The private signing key is not included in this release or its input archive.