chores: update doc badge & fix .npmignore

Author: iamspark1e

.npmignore

@@ -6,4 +6,5 @@ dev
 .gitignore
 webpack.config.js
 dist/**
-!dist/main.js
+!dist/main.js
+!dist/main.js.LICENSE.txt

README.md

@@ -1,21 +1,27 @@
 <h1 align='center'>netlify-cms-widget-simplemde</h1>
 
-<p align='center'>Replacement of markdown widget</p>
+<p align='center'>
+  <a href="https://github.com/iamspark1e/netlify-cms-widget-simplemde"><img src="https://data.jsdelivr.com/v1/package/npm/netlify-cms-widget-simplemde/badge" /></a>
+</p>
+
+<p align='center'>Replacement of NetlifyCMS (Decap CMS) Markdown widget</p>
 <br />
 
 ### Quick Start
 
 Add below script code after Netlify CMS script tag,
 
 ```html
-<script src="https://www.unpkg.com/netlify-cms-widget-simplemde"></script>
+<script src="https://cdn.jsdelivr.net/npm/netlify-cms-widget-simplemde/dist/main.min.js"></script>
+<!-- OR use unpkg CDN -->
+<!-- <script src="https://www.unpkg.com/netlify-cms-widget-simplemde"></script> -->
 <script>
   CMS.registerWidget("simplemde", SimpleMDEControl, SimpleMDEPreview);
 </script>
 ```
 
 Then, change your original `"widget": "markdown"` into `"widget": "simplemde"`.
 
-Just so simple, I tested Chinese and works well.
+Just so simple, I tested Chinese and works well. (Old markdown widget cannot input Chinese characters fluently.)
 
 Any feature or suggests are welcomed!

package.json

@@ -5,7 +5,9 @@
   "main": "dist/main.js",
   "keywords": [
     "netlify-cms-widget",
+    "decap-cms-widget",
     "netlify-cms",
+    "decap-cms",
     "markdown",
     "simplemde",
     "easymde"