update reademe (pinpoint-apm#26)

Readme.md

@@ -59,33 +59,45 @@ This could be found in PHP/pinpoint_php_example/app/index.php.
 require_once __DIR__."/../vendor/autoload.php";
 
 // A writable path for caching AOP code
-define('AOP_CACHE_DIR',__DIR__.'/Cache/');                       
+define('AOP_CACHE_DIR',__DIR__.'/../Cache/');                       
 // Your plugins directory: All plugins must have a suffix "Plugin.php",as "CommonPlugin.php mysqlPlugin.php RPCPlugin.php"
 define('PLUGINS_DIR',__DIR__.'/../Plugins/');
-// since 0.2.3 supports user filter when loadering a class.
-define('USER_DEFINED_CLASS_MAP_IMPLEMENT','\Plugins\ClassMapInFile.php');
 // since 0.2.5+ PINPOINT_USE_CACHE = N, auto_pinpointed.php will generate Cache/* on every request. 
-define('PINPOINT_USE_CACHE','no');
+define('PINPOINT_USE_CACHE','YES');
 // Use pinpoint-php-aop auto_pinpointed.php instead of vendor/autoload.php
 require_once __DIR__. '/../vendor/pinpoint-apm/pinpoint-php-aop/auto_pinpointed.php';
 
 ```
-#### How to use setting.ini
+#### setting.ini
+
+Namespace conversion table for special class/function
+
+> How to use?
+
+[setting.ini](lib/Pinpoint/test/setting.ini)
+
 
-> Read the setting.ini comments
 
 
 ### How it works
 
-pinpoint-php-aop wrappers your class with an onBefore/onEnd/onException suite.
+* Use `nikic/PHP-Parser` generating glue layer code
+
+* Use namespace replace to reuse plugins or hook build-in class/function
+* Intercept php classloader to redirect origin class bettween proxied class
+
+
+> pinpoint-php-aop wrappers your class with an onBefore/onEnd/onException suite.
+
+#### Data Chart Map
 
 ![how it works](https://raw.githubusercontent.com/pinpoint-apm/pinpoint-c-agent/master/images/principle_v0.2.x.png)
 
 More details please go to lib/pinpoint/test/Comparison/pinpoint/test
 
-> If you found a bug, please create an issue to us without any hesitate.
 
-> If it could help you, please give us a star as a support!  Thanks!
+> PS: If you found a bug, please create an issue to us without any hesitate.
+
 
 ## Copyright