Merge branch 'develop/3.1.5' into test

src/pages/help/index.vue

@@ -29,7 +29,7 @@
     <view class="submit">
       <button type="submit" circle @click="getSubmit">提交</button>
       <view class="contact">
-        <span>客服微信：miao_ friend</span>
+        <span>客服微信：miao_friend</span>
         <span>客服电话：4008508199</span>
       </view>
     </view>