prereqs fix

README.md

@@ -14,7 +14,7 @@ Pre-requisites for installation
 ---
 Following are the *minimum* requirements before installing MACKE. 
 
-- **Python 2.7+ **
+- **Python 2.7+**
 -  **KLEE** - We have prepared a [KLEE installation guide](https://github.com/tum-i22/macke/blob/master/KLEE.md) that includes all the pre-requisites for KLEE, such as LLVM's Clang toolkit, uclibc and a SMT solver. 
 - **Libclang** - MACKE requires Python wrappings for libclang's C/C++ parsing library to work correctly. A nice guide to parsing C++ in Python can be found at [Eli Bendersky's website](http://eli.thegreenplace.net/2011/07/03/parsing-c-in-python-with-clang), that includes some installation details.