chore: require JSS >= 0.0.211 so serving never seeds index.html/.acl (#6)

JSS used to seed a landing page and .acl files into the server root on
first start, polluting whatever directory servejss was pointed at.
Upstream fixed this in 0.0.211 (ec8547b, #578/#579): seeding is skipped
in --public and --read-only modes. Raise the dependency floor so every
install is guaranteed the guard, refresh the lockfile (resolves 0.0.212),
and bump to 0.0.8.

README notes the global-jss fallback: a stale global install also needs
updating, since bin/jsserve.js falls back to it when the bundled
dependency is missing.

Author: melvincarvalho

README.md

@@ -28,6 +28,15 @@ Or use directly with npx:
 npx servejss
 ```
 
+servejss requires JSS >= 0.0.211, which never writes `index.html` or `.acl`
+files into the served directory. If the bundled dependency is missing,
+servejss falls back to a globally installed `jss` — if you have an old
+global install, update it too:
+
+```bash
+npm install -g javascript-solid-server@latest
+```
+
 ## Usage
 
 ```bash