Clean up some comments in the workflow

.github/workflows/build_and_test.yml

@@ -49,12 +49,12 @@ jobs:
       # Setup MSVC toolchain and developer command prompt (Windows)
       - uses: ilammy/msvc-dev-cmd@v1
 
-      # This is just easier than debugging different compilers
+      # Use clang on Linux so we don't introduce a 3rd compiler (Windows and macOS use MSVC and Clang)
       - name: Set up Clang
         if: runner.os == 'Linux'
         uses: egor-tensin/setup-clang@v1
 
-      # This also starts up our "fake" display Xvfb, needed for pluginval
+      # This also starts up our "fake" display (Xvfb), needed for pluginval
       - name: Install JUCE's Linux Deps
         if: runner.os == 'Linux'
         # Thanks to McMartin & co https://forum.juce.com/t/list-of-juce-dependencies-under-linux/15121/44