Update doc

README.md

@@ -31,6 +31,14 @@ The branch [srs](https://github.com/ossrs/state-threads/tree/srs) will be patche
 * API reference: http://ossrs.github.io/state-threads/docs/reference.html
 * Programming notes: http://ossrs.github.io/state-threads/docs/notes.html
 
+## Analysis
+
+* About setjmp and longjmp, read [setjmp](https://gitee.com/winlinvip/srs-wiki/raw/master/images/st-setjmp.jpg).
+* About the stack structure, read [stack](https://gitee.com/winlinvip/srs-wiki/raw/master/images/st-stack.jpg)
+* About asm code comments, read [#91d530e](https://github.com/ossrs/state-threads/commit/91d530e#diff-ed9428b14ff6afda0e9ab04cc91d4445R25).
+* About the scheduler, read [#13-scheduler](https://github.com/ossrs/state-threads/issues/13#issuecomment-616025527).
+* About the IO event system, read [#13-IO](https://github.com/ossrs/state-threads/issues/13#issuecomment-616096568).
+
 ## Usage
 
 Get code:
@@ -87,12 +95,4 @@ Important cli options:
 1. `--track-origins=<yes|no> [default: no]`, Controls whether Memcheck tracks the origin of uninitialised values. By default, it does not, which means that although it can tell you that an uninitialised value is being used in a dangerous way, it cannot tell you where the uninitialised value came from. This often makes it difficult to track down the root problem.
 1. `--show-reachable=<yes|no> , --show-possibly-lost=<yes|no>`, to show the using memory.
 
-## Analysis
-
-1. About setjmp and longjmp, read [setjmp](https://gitee.com/winlinvip/srs-wiki/raw/master/images/st-setjmp.jpg).
-1. About the stack structure, read [stack](https://gitee.com/winlinvip/srs-wiki/raw/master/images/st-stack.jpg)
-1. About asm code comments, read [#91d530e](https://github.com/ossrs/state-threads/commit/91d530e#diff-ed9428b14ff6afda0e9ab04cc91d4445R25).
-1. About the scheduler, read [#13-scheduler](https://github.com/ossrs/state-threads/issues/13#issuecomment-616025527).
-1. About the IO event system, read [#13-IO](https://github.com/ossrs/state-threads/issues/13#issuecomment-616096568).
-
 Winlin 2016