docs: link n8n node to public npm package

- Point the main README n8n integration section at the published npm package.

- Clarify that the n8n node connects directly to browser-cli serve over the authenticated encrypted TCP protocol.

- Update the n8n node README installation text to use the public community-node package name.

n8n-nodes-browser-cli/README.md

@@ -1,5 +1,5 @@
 # n8n-nodes-browser-cli
-An [n8n](https://n8n.io) community node that controls a **real, visible browser**
+An [n8n](https://n8n.io) community node, published on npm as [`n8n-nodes-browser-cli`](https://www.npmjs.com/package/n8n-nodes-browser-cli), that controls a **real, visible browser**
 from your workflows via [browser-cli](https://chromewebstore.google.com/detail/browser-cli/hekaebjhbhhdbmakimmaklbblbmccahp).
 
 browser-cli drives a running browser through a native-messaging host and a
@@ -83,8 +83,7 @@ npm test          # pure unit tests: command mapping + crypto known-answer vecto
 npm run build     # tsc -> dist/, copies the icon
 ```
 
-Then install into n8n as a [community node](https://docs.n8n.io/integrations/community-nodes/installation/)
-(`n8n-nodes-browser-cli`), or symlink `dist/` into `~/.n8n/custom` for local testing.
+Install the published package in n8n as a [community node](https://docs.n8n.io/integrations/community-nodes/installation/) using the package name `n8n-nodes-browser-cli`, or symlink `dist/` into `~/.n8n/custom` for local testing.
 
 ## License
 PolyForm Noncommercial License 1.0.0 — same as browser-cli.