Added doxygen build command

Author: TheMostDiligent

.github/workflows/linux.yml

@@ -16,8 +16,9 @@ jobs:
       uses: actions/checkout@v4
       with:
         repository: DiligentGraphics/DiligentEngine
-        path:       DiligentEngine
+        path:       ${{github.workspace}}/DiligentEngine
         submodules: true
+        ref: development
 
     - name: Install Doxygen
       shell: bash
@@ -28,3 +29,13 @@ jobs:
         sudo cp -r doxygen-$DOXYGEN_VERSION/bin/* /usr/local/bin/
         rm -rf doxygen-$DOXYGEN_VERSION*
         doxygen --version
+
+    - name: Build Documentation
+      working-directory: ${{github.workspace}}/DiligentEngine
+      shell: bash
+      run: |
+        # Build page structure
+        python Doc/md_pages.py Doc/pages.dox
+        # Build documentation
+        mkdir -p build/docs
+        doxygen Doc/doxygen.cfg