Add GitHub pages (#617)

* Add GitHub pages

* Prettier

Author: balloob

.github/workflows/publish-pages.yml

@@ -0,0 +1,47 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches:
+      - master
+
+# Add permissions
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+jobs:
+  build: # Renamed from build-and-deploy for clarity
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: ".nvmrc" # Read version from .nvmrc
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Build
+        run: yarn build
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          # Upload entire repository
+          path: "."
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

README.md

@@ -4,7 +4,7 @@ This is a websocket client written in JavaScript that allows retrieving authenti
 
 ## Trying it out
 
-Check [the demo](https://hass-auth-demo.glitch.me/). The repository also includes an [example client](https://github.com/home-assistant/home-assistant-js-websocket/blob/master/example.html):
+Check [the demo](https://home-assistant.github.io/home-assistant-js-websocket/) ([source](https://github.com/home-assistant/home-assistant-js-websocket/blob/master/index.html)).
 
 Clone this repository, then go to home-assistant-js-websocket folder and run the following commands: