Fix cargo readme

Author: fitzgen

README.md

@@ -1,6 +1,4 @@
-[![Build Status](https://travis-ci.org/rustwasm/wee_alloc.svg?branch=master)](https://travis-ci.org/rustwasm/wee_alloc)
-
-# wee_alloc
+# `wee_alloc`
 
 
 [![](https://docs.rs/wee_alloc/badge.svg)](https://docs.rs/wee_alloc/)
@@ -224,5 +222,3 @@ See
 [CONTRIBUTING.md](https://github.com/rustwasm/wee_alloc/blob/master/CONTRIBUTING.md)
 for hacking!
 
-
-License: MPL-2.0