Update build.yml

Author: torresc24

.github/workflows/build.yml

@@ -34,4 +34,11 @@ jobs:
         run: |
           pip install -e .
           pip install --upgrade setuptools
-          make docs 
+          make docs
+      - name: Build binary wheel and a source tarball
+        run: python setup.py sdist
+      - name: Publish a Python distribution to PyPI
+        uses: pypa/gh-action-pypi-publish@release
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}