Move more Travis jobs to GitHub Actions (#709)

* Add release job

* Remove Travis configuration

* Update docs

Author: bhrutledge

.github/workflows/main.yml

@@ -67,3 +67,19 @@ jobs:
         run: python -m pip install tox
       - name: Build docs
         run: python -m tox -e docs
+
+  release:
+    needs: [lint, types, test, docs]
+    if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+      - name: Install dependencies
+        run: python -m pip install tox
+      - name: Release
+        run: tox -e release
+        env:
+          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}

.travis.yml

@@ -203,7 +203,7 @@ A checklist for creating, testing, and distributing a new version.
 #. Merge the pull request, and ensure the `GitHub Actions`_ build passes.
 #. Create a new git tag with ``git tag -m "Release v{version}" {version}``.
 #. Push the new tag with ``git push upstream {version}``.
-#. Watch the release in `Travis`_.
+#. Watch the release in `GitHub Actions`_.
 #. Send announcement email to `distutils-sig mailing list`_ and celebrate.
 
 
@@ -224,7 +224,6 @@ merge into a single tool; see `ongoing discussion
 .. _`tox`: https://tox.readthedocs.io/
 .. _`pytest`: https://docs.pytest.org/
 .. _`GitHub Actions`: https://github.com/pypa/twine/actions
-.. _`Travis`: https://travis-ci.com/github/pypa/twine
 .. _`isort`: https://timothycrosley.github.io/isort/
 .. _`black`: https://black.readthedocs.io/
 .. _`flake8`: https://flake8.pycqa.org/