Fix sitemap headers and add sitemap-index

Author: waqasm86

.github/workflows/static.yml

@@ -0,0 +1,27 @@
+name: Deploy static content with custom headers
+on:
+  push:
+    branches: ["gh-pages"]
+  workflow_dispatch:
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup Pages
+        uses: actions/configure-pages@v3
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: '.'
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2

.htaccess

@@ -0,0 +1,6 @@
+<Files "sitemap.xml">
+  ForceType application/xml
+</Files>
+<Files "sitemap-index.xml">
+  ForceType application/xml
+</Files>

index.html

@@ -1,19 +1,4 @@
-# robots.txt for llcuda v2.2.0
 User-agent: *
 Allow: /
-
-# Sitemaps
+Sitemap: https://llcuda.github.io/sitemap-index.xml
 Sitemap: https://llcuda.github.io/sitemap.xml
-Sitemap: https://llcuda.github.io/sitemap.xml.gz
-
-# Crawl-delay
-Crawl-delay: 0
-
-# Specific bot instructions
-User-agent: Googlebot
-Allow: /
-Crawl-delay: 0
-
-User-agent: Bingbot
-Allow: /
-Crawl-delay: 0