Update README.md

Author: twose

README.md

@@ -2,21 +2,25 @@
 
 ## How to contribute
 
-```
-update the PHP scripts in this dir
-if ( new script ) {
-    update "./config.inc"
-}
-if ( new hook function ) {
-    update  "/swoole_runtime.cc" (search "hook_func")
-}
-run "/remake_library.sh" (recompile the library)
-```
+Just new pull request (and we need unit tests for new features)
+
+#### Code requirements
+
++ PHP 7.1+
++ PSR1 and PSR2
++ Strict type
 
-then new pull request (we need unit tests for new features)
+## Develop
+
++ [Document](https://wiki.swoole.com/wiki/page/p-library.html)
++ [Examples](https://github.com/swoole/library/tree/master/examples)
+
+## Compatibility Patch (Swoole version <= v4.4.12)
+
+```php
+define('SWOOLE_USE_SHORTNAME', true); // or false (it depends on you)
+```
 
-## Code requirements
+## License
 
-1. PHP 7.1+
-2. PSR1 and PSR2
-3. Strict type
+Apache License Version 2.0 see http://www.apache.org/licenses/LICENSE-2.0.html