Automate Github release after npm publish, using PR message as version notes

[chriscarrollsmith]

Example of how to use release action:

on:
push:
# Sequence of patterns matched against refs/tags
tags:
- 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10

name: Create Release

jobs:
build:
name: Create Release
runs-on: ubuntu-latest
steps:
- name: Checkout code
uses: actions/checkout@v2
- name: Create Release
id: create_release
uses: actions/create-release@v1
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
with:
tag_name: ${{ github.ref }}
release_name: Release ${{ github.ref }}
body: |
Changes in this Release
- First Change
- Second Change
draft: false
prerelease: false