ci: Added deploy docs workflow

Author: BottlecapDave

.github/workflows/deploy_docs.yml

@@ -0,0 +1,28 @@
+name: Deploy docs 
+on:
+  push:
+    paths:
+      - 'mkdocs.yml'
+      - '_docs/**'
+    branches:
+      - main
+permissions:
+  contents: write
+jobs:
+  deploy_docs:
+    name: Deploy docs
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: 3.x
+      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
+      - uses: actions/cache@v3
+        with:
+          key: mkdocs-material-${{ env.cache_id }}
+          path: .cache
+          restore-keys: |
+            mkdocs-material-
+      - run: pip install mkdocs-material 
+      - run: mkdocs gh-deploy --force