Add Tags to README (#16)

* docs: (README) add npm and gitter tag

Author: ZOUJIELynn

README.md

@@ -7,6 +7,8 @@
 </br>
   <a href="README.md"><img src="https://img.shields.io/badge/document-English-blue" alt="Document"></a>
   <a href="README_zh_CN.md"><img src="https://img.shields.io/badge/%E6%96%87%E6%A1%A3-%E4%B8%AD%E6%96%87-blue" alt="Document"></a>
+    <a href="https://www.npmjs.com/package/ng-devui"><img src="https://img.shields.io/npm/v/ng-devui" alt="Npm"></a>
+  <a href="https://gitter.im/devui-design/devui-design"><img src="https://img.shields.io/gitter/room/devui-design/devui-design" alt="Chat"></a>
 </p>
 
 
@@ -101,4 +103,4 @@ Modern browsers and Internet Explorer 11+.
 
 ## LICENSE
 
-[**MIT**](https://opensource.org/licenses/MIT)
+[**MIT**](https://opensource.org/licenses/MIT)

README_zh_CN.md

@@ -7,6 +7,8 @@
 </br>
   <a href="README.md"><img src="https://img.shields.io/badge/document-English-blue" alt="Document"></a>
   <a href="README_zh_CN.md"><img src="https://img.shields.io/badge/%E6%96%87%E6%A1%A3-%E4%B8%AD%E6%96%87-blue" alt="Document"></a>
+    <a href="https://www.npmjs.com/package/ng-devui"><img src="https://img.shields.io/npm/v/ng-devui" alt="Npm"></a>
+  <a href="https://gitter.im/devui-design/devui-design"><img src="https://img.shields.io/gitter/room/devui-design/devui-design" alt="Chat"></a>
 </p>
 
 
@@ -107,4 +109,4 @@ $ ng serve --open
 
 ## LICENSE
 
-[**MIT**](https://opensource.org/licenses/MIT)
+[**MIT**](https://opensource.org/licenses/MIT)