Fix format

Author: melode11

README.md

@@ -16,7 +16,7 @@ By virtue of being written in C++, this client works in several different platfo
 - Similar API to the Socket.IO JS client
 
 ## How to use
-<a name="with_cmake"></a>### With CMake
+###<a name="with_cmake"></a> With CMake
 1. Install boost, see [Boost setup](#boost_setup) section.
 2. Use `git clone --recurse-submodules https://github.com/socketio/socket.io-client-cpp.git` to clone your local repo.
 3. Run `cmake -DBOOST_PATH:STRING=<your boost install folder> -DBOOST_VER:STRING=<your boost version> ./`