* Add tips for merge code locally.

module/mr/lang/en.php

@@ -86,6 +86,7 @@ $lang->mr->mergeSuccess   = "Merge Request Successfully";
 $lang->mr->commandDocument = <<< EOD
 <div class='detail-title'>Check out, review and merge locally</div>
 <div class='detail-content'>
+  <p><strong>Note: This merge request status will be changed after you merge locally and you will need to delete this merge request or submit new code.</strong></p>
   <p>
     step 1. Fetch and check out the branch for this merge request
     <pre>

module/mr/lang/zh-cn.php

@@ -77,7 +77,7 @@ $lang->mr->mergeSuccess   = "已成功合并";
 /**
  * Merge Command Document.
  *
- * %s source_roject::http_url_to_repo
+ * %s source_project::http_url_to_repo
  * %s mr::source_branch
  * %s source_project::path_with_namespace . '-' . mr::source_branch
  * %s mr::target_branch
@@ -87,6 +87,7 @@ $lang->mr->mergeSuccess   = "已成功合并";
 $lang->mr->commandDocument = <<< EOD
 <div class='detail-title'>在本地检出、审核和手动合并</div>
 <div class='detail-content'>
+  <p><strong>注意：您在本地合并后此合并请求将变为不可合并状态，需要删除此合并请求或者提交新的代码。</strong></p>
   <p>
     第 1 步. 获取并查看此合并请求的分支
     <pre>