Update README.md

bestswifter · bestswifter · commit 48990bb1c8d1 · 2016-01-12T13:34:29.000+08:00
diff --git a/runtime/README.md b/runtime/README.md
@@ -1,3 +1,3 @@
 # Runtime相关的方法
 
-这份代码是[《歪解Runtime》](http://www.jianshu.com/p/295cd2b6b42e)一文的demo
+这份代码是[《歪解Runtime》](http://www.jianshu.com/p/295cd2b6b42e)一文的demo,主要涉及Runtime和方法调用、转发相关的知识

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`@@ -1,3 +1,3 @@`
`1`	`1`	`# Runtime相关的方法`
`2`	`2`
`3`		`-这份代码是[《歪解Runtime》](http://www.jianshu.com/p/295cd2b6b42e)一文的demo`
	`3`	`+这份代码是[《歪解Runtime》](http://www.jianshu.com/p/295cd2b6b42e)一文的demo,主要涉及Runtime和方法调用、转发相关的知识`