Meta: Preparation for source reformatting

* Add data-noreformat attributes
* Fix double spaces and incorrect wrapping around tags
* Add a Check Formatting workflow

Author: zcorpan

.github/workflows/build.yml

@@ -15,6 +15,18 @@ jobs:
       with:
         fetch-depth: 2
         path: 'source'
+    - name: Check Formatting
+      run: |
+        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+        source $HOME/.cargo/env
+        cargo install reformahtml
+        mkdir tmp
+        reformahtml source/source tmp/reformatted-source
+        diff source/source tmp/reformatted-source > tmp/diff_output.txt || true
+        if [ -s tmp/diff_output.txt ]; then
+          cat tmp/diff_output.txt
+          exit 1
+        fi
     - name: Build
       run: |
         mkdir output