Point at install.sh for the Lance worker

The installer learned --component worker-rust, so the release route is a
one-liner rather than a manual download.

Lance-Maintenance-Worker.md

@@ -25,6 +25,13 @@ available for the platform rather than failing as "not found".
 
 ### From a release
 
+```bash
+curl -fsSL https://raw.githubusercontent.com/seaweedfs/seaweedfs/master/install.sh \
+  | bash -s -- --component worker-rust
+```
+
+`--component all` takes it along with `weed` and the Rust volume server, and
+skips it on a platform it has no build for. The assets behind it are
 `weed-worker_linux_amd64.tar.gz` and `weed-worker_linux_arm64.tar.gz`, with
 md5s, on each GitHub release. Linux only: the worker runs beside the cluster it
 maintains, and lance, arrow and datafusion make every extra target an expensive