docs: archival/standalone notes for vendored third_party assets

README.md

@@ -113,11 +113,9 @@ wrapper, so the WebUI does not need to implement them. See `docs/TTS-DESIGN.md`.
 - The Flextalk archive lacks `data2.cab`; `unshield -O` extracts `data1.cab`
   but one tail file (`WatsonUNInstall.dll`) is incomplete.
 
-## Reference material (not in this repo)
+## Reference material
 
-- `third_party/speech.h` — SAPI4 SDK header (vendored, so the build is standalone)
-- `../reference/SAPI4-CLI`, `../reference/TETYYS-SAPI4` — host examples
-- `../reference/NetTTS` — VOX parser reference for `setup/vox_parser.py`
-- `../Microsoft-Sam-Mary-Mike-TruVoice-WSAPI4` — installers/payloads
-- `../flextalk` — Flextalk installer archive + extraction
-- `/mnt/ghidra/decomp/{msttssyn.dll,speech.dll}/` — decompiled corpora
+- `third_party/` — vendored dependencies; see `third_party/README.md`. Everything the
+  tool needs is in the repo (SAPI4 runtime, MSTTS voices, Flextalk cabinet, `speech.h`,
+  NetTTS parser source).
+- `/mnt/ghidra/decomp/{msttssyn.dll,speech.dll}/` — decompiled corpora (external, optional)