release preparation (#134)

* added release.yml to automate release to pypi process, fixed long_description type (was causing error)

* added release notes from pymc repo

.github/release.yml

@@ -0,0 +1,24 @@
+# This file contains configuration for the automatic generation of release notes in GitHub.
+# It's not perfect, but it makes it a little less laborious to write informative release notes.
+# Also see https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes
+changelog:
+  exclude:
+    labels:
+      - no releasenotes
+  categories:
+    - title: Major Changes 🛠
+      labels:
+        - major
+    - title: New Features 🎉
+      labels:
+        - enhancements
+        - feature request
+    - title: Bugfixes 🪲
+      labels:
+        - bug
+    - title: Documentation 📖
+      labels:
+        - docs
+    - title: Maintenance 🔧
+      labels:
+        - "*"

.github/workflows/release.yml

@@ -0,0 +1,48 @@
+name: release-pipeline
+
+on:
+  release:
+    types:
+      - created
+
+jobs:
+  release-job:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.7
+      - name: Install release tools
+        run: |
+          python -m pip install --upgrade pip
+          pip install setuptools wheel twine
+      - name: Build distribution package
+        run: python setup.py sdist bdist_wheel
+      - name: Check version number match
+        run: |
+          echo "GITHUB_REF: ${GITHUB_REF}"
+          # The GITHUB_REF should be something like "refs/tags/v1.2.3"
+          # Make sure the package version is the same as the tag
+          grep -Rq "^Version: ${GITHUB_REF:11}$" pymc.egg-info/PKG-INFO
+      - name: Publish to PyPI
+        env:
+          TWINE_USERNAME: __token__
+          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN_PYMC }}
+        run: |
+          twine check dist/*
+          twine upload --repository pypi --username __token__ --password ${PYPI_TOKEN} dist/*
+  test-install-job:
+    needs: release-job
+    runs-on: ubuntu-latest
+    steps:
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: 3.7
+    - name: Give PyPI a chance to update the index
+      run: sleep 240
+    - name: Install from PyPI
+      run: |
+        pip install pymc-experimental==${GITHUB_REF:11}

setup.py

@@ -85,7 +85,7 @@ def get_version():
         license=LICENSE,
         url=URL,
         long_description=LONG_DESCRIPTION,
-        long_description_content_type="text/x-rst",
+        long_description_content_type="text/markdown",
         packages=find_packages(),
         # because of an upload-size limit by PyPI, we're temporarily removing docs from the tarball.
         # Also see MANIFEST.in