diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 63e8d54f5..251a85bd3 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,8 +2,7 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="0b8685e8-e176-4bd1-aecd-39914b115815" name="Default" comment="">
-      <change beforePath="" afterPath="$PROJECT_DIR$/.idea/vcs.xml" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/README_zh.md" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
       <change beforePath="$PROJECT_DIR$/README.md" afterPath="$PROJECT_DIR$/README.md" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
@@ -19,8 +18,8 @@
         <entry file="file://$PROJECT_DIR$/README_zh.md">
           <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
             <state split_layout="SPLIT">
-              <first_editor relative-caret-position="90">
-                <caret line="5" column="0" lean-forward="true" selection-start-line="5" selection-start-column="0" selection-end-line="5" selection-end-column="0" />
+              <first_editor relative-caret-position="97">
+                <caret line="13" column="0" lean-forward="true" selection-start-line="13" selection-start-column="0" selection-end-line="13" selection-end-column="0" />
                 <folding />
               </first_editor>
               <second_editor />
@@ -32,8 +31,8 @@
         <entry file="file://$PROJECT_DIR$/README.md">
           <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
             <state split_layout="SPLIT">
-              <first_editor relative-caret-position="286">
-                <caret line="64" column="0" lean-forward="true" selection-start-line="64" selection-start-column="0" selection-end-line="64" selection-end-column="0" />
+              <first_editor relative-caret-position="211">
+                <caret line="13" column="244" lean-forward="false" selection-start-line="13" selection-start-column="244" selection-end-line="13" selection-end-column="244" />
                 <folding />
               </first_editor>
               <second_editor />
@@ -225,12 +224,12 @@
       <option name="number" value="Default" />
       <option name="presentableId" value="Default" />
       <updated>1525523789426</updated>
-      <workItem from="1525523790774" duration="77000" />
+      <workItem from="1525523790774" duration="246000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="77000" />
+    <option name="totallyTimeSpent" value="246000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="23" width="1440" height="828" extended-state="0" />
@@ -245,7 +244,7 @@
       <window_info id="Maven Projects" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
       <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.3287858" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
       <window_info id="Capture Tool" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
       <window_info id="Designer" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
       <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.24964234" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
@@ -278,8 +277,8 @@
     <entry file="file://$PROJECT_DIR$/README_zh.md">
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SPLIT">
-          <first_editor relative-caret-position="90">
-            <caret line="5" column="0" lean-forward="true" selection-start-line="5" selection-start-column="0" selection-end-line="5" selection-end-column="0" />
+          <first_editor relative-caret-position="97">
+            <caret line="13" column="0" lean-forward="true" selection-start-line="13" selection-start-column="0" selection-end-line="13" selection-end-column="0" />
             <folding />
           </first_editor>
           <second_editor />
@@ -289,8 +288,8 @@
     <entry file="file://$PROJECT_DIR$/README.md">
       <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
         <state split_layout="SPLIT">
-          <first_editor relative-caret-position="286">
-            <caret line="64" column="0" lean-forward="true" selection-start-line="64" selection-start-column="0" selection-end-line="64" selection-end-column="0" />
+          <first_editor relative-caret-position="211">
+            <caret line="13" column="244" lean-forward="false" selection-start-line="13" selection-start-column="244" selection-end-line="13" selection-end-column="244" />
             <folding />
           </first_editor>
           <second_editor />
diff --git a/README.md b/README.md
index 6ba2d8284..83ea00c2e 100755
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ If you have any problem while using C++ SDK, please join the **DingTalk group: 1
 
 - To use Alibaba Cloud C++ SDK, you must have an Alibaba Cloud account and an AccessKey.
 
-	The AccessKey is required when initializing the client. You can create an AccessKey in the Alibaba Cloud console. For more information, see [Create an AccessKey](~~53045~~).
+	The AccessKey is required when initializing the client. You can create an AccessKey in the Alibaba Cloud console. For more information, see [Create an AccessKey](https://usercenter.console.aliyun.com/?spm=5176.doc52740.2.3.QKZk8w#/manage/ak).
 
 	>**Note:** To increase the security of your account, we recommend that you use the AccessKey of the RAM user to access Alibaba Cloud services.