:art: refine document

README.md

@@ -19,7 +19,7 @@
     <tr>
 			<td align="left" valign="middle">
         <a href="http://mp.weixin.qq.com/mp/homepage?__biz=MzI3MzAwMzk4OA==&hid=1&sn=f31af3bf562b116b061c9ab4edf70b61&scene=18#wechat_redirect" target="_blank">
-				  <img height="120" src="http://binarywang.com/qrcodes/mp.png">
+				  <img height="120" src="https://gitee.com/binary/weixin-java-tools/raw/develop/images/qrcodes/mp.png">
         </a>
 			</td>
       <td align="center" valign="middle" width="250">
@@ -30,7 +30,7 @@
       </td>
 			<td align="center" valign="middle">
 				<a href="https://promotion.aliyun.com/ntms/act/qwbk.html?userCode=7makzf5h" target="_blank">
-					<img height="120" src="http://binarywang.com/banners/aliyun.jpg">
+					<img height="120" src="https://gitee.com/binary/weixin-java-tools/raw/develop/images/banners/aliyun.jpg">
 				</a>
 			</td>
 		</tr>