added gh-actions for release

.github/release-drafter.yml

@@ -0,0 +1,30 @@
+name-template: 'v$RESOLVED_VERSION 🌈'
+tag-template: 'v$RESOLVED_VERSION'
+categories:
+  - title: '🚀 Features'
+    labels:
+      - 'feature'
+      - 'enhancement'
+  - title: '🐛 Bug Fixes'
+    labels:
+      - 'fix'
+      - 'bugfix'
+      - 'bug'
+  - title: '🧰 Maintenance'
+    label: 'chore'
+change-template: '- $TITLE @$AUTHOR (#$NUMBER)'
+change-title-escapes: '\<*_&' # You can add # and @ to disable mentions, and add ` to disable code blocks.
+version-resolver:
+  major:
+    labels:
+      - 'major'
+  minor:
+    labels:
+      - 'minor'
+  patch:
+    labels:
+      - 'patch'
+  default: patch
+template: |
+  ## Changes
+  $CHANGES

.github/workflows/docs.yml

@@ -1,8 +1,5 @@
 name: docs/gh-pages
 on: workflow_dispatch
-  # create:
-  #   tags:
-  #     - v*
 
 jobs:
     build-docs:

.github/workflows/release-drafter.yml

@@ -0,0 +1,16 @@
+name: Release Drafter
+
+on:
+  push:
+    # - master
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: release-drafter/release-drafter@v5
+
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

@@ -0,0 +1,31 @@
+name: build & release
+on:
+  release:
+    types: [published]
+
+jobs:
+    build-n-publish:
+        name: Build and publish to PyPI
+        runs-on: ubuntu-18.04
+        steps:
+            - name: Checkout branch
+              uses: actions/checkout@v2
+
+            - name: Setup python 
+              uses: actions/setup-python@master
+              with:
+                python-version: 3.8
+
+            - name: Install poetry
+              uses: snok/[email protected]
+              with:
+                version: 1.1.4
+                create_virtualenvs: true
+
+            - name: Install dependencies
+              run: poetry install
+
+            - name: Build and publish to PyPI
+              run: |
+                poetry build
+                poetry publish -u ${{ secrets.PYPI_USERNAME }} -p ${{ secrets.PYPI_PASSWORD }}