Add GitHub community standards, templates, and workflows

.github/workflows/check-docs.yml

@@ -0,0 +1,28 @@
+name: Docs Build Check
+
+on:
+  pull_request:
+    paths:
+      - 'docs/**'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: docs
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: 'docs/package-lock.json'
+          
+      - name: Install Dependencies
+        run: npm ci || npm install
+        
+      - name: Build Nextra Docs
+        run: npm run build