Update with PyPi deploy

Author: tomhamiltonstubber

.github/workflows/ci.yml

@@ -18,3 +18,15 @@ jobs:
         docker run \
         -v ${{ github.workspace }}:/srv/jekyll -v ${{ github.workspace }}/_site:/srv/jekyll/_site \
         jekyll/builder:latest /bin/bash -c "chmod 777 /srv/jekyll && jekyll build --future"
+
+  publish:
+    name: Publish
+    needs: build
+    if: "success() && startsWith(github.ref, 'refs/tags/')"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Publish package to PyPI
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          user: __token__
+          password: ${{ secrets.pypi_password }}