add npm publish script + change the package name to @mergeability/mergeable (#569)

Author: shine2lay

.github/workflows/publish.yml

@@ -0,0 +1,25 @@
+name: Publish NPM package
+
+on:
+  push:
+    branches: ['master']
+
+jobs:
+  build:
+    name: publish the package to NPM
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [14.15.4]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - uses: JS-DevTools/npm-publish@v1
+        with:
+          token: ${{ secrets.NPM_TOKEN }}

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "mergeable",
+  "name": "@mergeability/mergeable",
   "version": "2.0.0",
   "description": "",
   "author": "Justin Law <hello@justinlaw.org> (https://github.io/mergeability/mergeable), Shine Lee <aungshine@gmail.com>",