CI: add documentation workflow

.github/workflows/build_documentation.yml

@@ -0,0 +1,66 @@
+name: Documentation Build
+
+on: [pull_request, workflow_dispatch]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  docs-style:
+    name: Check documentation style
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check documentation style
+        uses: ansys/actions/doc-style@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          vale-config: "doc/.vale.ini"
+          vale-version: "2.29.6"
+
+  docs_build:
+    name: Build documentation
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.8
+
+      - name: Install pyedb with doc dependencies
+        run: |
+          pip install .[doc]
+
+      - name: Verify that pyedb can be imported
+        run: python -c "import pyedb"
+
+      - name: Retrieve pyedb version
+        run: |
+          echo "Pyedb version is: $(python -c "from pyedb import __version__; print(); print(__version__)" | tail -1)"
+
+      - name: Install doc build requirements
+        run: |
+          sudo apt install graphviz
+
+      # Run doc build, without creating the examples directory.
+      # NOTE: we have to add the examples file here since it won't be created as gallery is disabled on linux.
+      - name: Documentation Build
+        run: |
+          make -C doc clean
+          mkdir doc/source/examples -p
+          echo $'Examples\n========' > doc/source/examples/index.rst
+          make -C doc html SPHINXOPTS="-j auto -w build_errors.txt -N"
+
+      # Verify that sphinx generates no warnings
+      - name: Check for warnings
+        run: |
+          python doc/print_errors.py
+
+     - name: Upload Documentation
+       uses: actions/upload-artifact@v3
+       with:
+         name: Documentation
+         path: doc/_build/html
+         retention-days: 1