Grap tidy from GitHub

Author: remram44

.github/workflows/test.yml

@@ -11,7 +11,8 @@ jobs:
     - uses: actions/checkout@v2
     - name: Install tidy 5.8.0
       run: |
-        curl -sSL -o /usr/local/bin/tidy 'https://gitlab.com/remram44/taguette/-/snippets/2150886/raw/main/tidy-5.8.0?inline=false'
+        curl -sSL -o /tmp/tidy.zip https://github.com/remram44/regex-cheatsheet/files/6848619/tidy-5.8.0.zip
+        unzip -p /tmp/tidy.zip tidy-5.8.0 >/usr/local/bin/tidy
         chmod +x /usr/local/bin/tidy
     - name: Validate HTML
       run: tidy -errors -quiet --drop-empty-elements no regex.html