Update README.md

README.md

@@ -76,7 +76,7 @@ try {
 }
 ```
 
-So far the code modification is done.  
+So far the code modification is done. We also provide [annotation support module](https://github.com/alibaba/Sentinel/blob/master/sentinel-extension/sentinel-annotation-aspectj/README.md) to define resource easier.
 
 ### 3. Define Rules
 
@@ -93,6 +93,8 @@ rules.add(rule);
 FlowRuleManager.loadRules(rules);
 ```
 
+For more information, please refer to [How To Use](https://github.com/alibaba/Sentinel/wiki/How-to-Use).
+
 ### 4. Check the Result
 
 After running the demo for a while, you can see the following records in `~/logs/csp/${appName}-metrics.log`.
@@ -144,3 +146,12 @@ These are only part of the companies using Sentinel, for reference only. If you
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 ![Shunfeng Technology](https://user-images.githubusercontent.com/9434884/48463502-2f48eb80-e817-11e8-984f-2f9b1b789e2d.png)
 ![Mandao](https://user-images.githubusercontent.com/9434884/48463559-6cad7900-e817-11e8-87e4-42952b074837.png)
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