Add Docs workflow

.github/workflows/docs.yml

@@ -0,0 +1,37 @@
+# This workflow is used to test, if the documentation can build
+
+name: Docs
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: conda-incubator/setup-miniconda@v2
+      with:
+        python-version: "3.10"
+        mamba-version: "*"
+        channels: conda-forge
+        channel-priority: strict
+        auto-update-conda: true  
+        environment-file: .ci_support/environment.yml
+    - name: Setup
+      shell: bash -l {0}
+      run: |
+        python .ci_support/pyironconfig.py
+        pip install --no-deps .
+        conda env update --name test --file docs/environment.yml
+    - name: Documentation
+      shell: bash -l {0}
+      run: |
+        mkdir public_html; cd docs
+        sphinx-build -b html ./ ../public_html || exit 1;
+        cd ..