diff --git a/README.md b/README.md
index f72344e..c574d60 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Compiling / running (Linux/mac)
 
 [![Join the chat at https://gitter.im/openworm/sibernetic](https://badges.gitter.im/openworm/sibernetic.svg)](https://gitter.im/openworm/sibernetic?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-**Linux**
+## Linux
 Install OpenCL on Ubuntu. We suggest you initially go with [AMD OpenCL drivers](http://developer.amd.com/tools-and-sdks/heterogeneous-computing/amd-accelerated-parallel-processing-app-sdk/downloads/) as we have found these to be the most stable and complete. You can also try [Intel's drivers](http://develnoter.blogspot.co.uk/2012/05/installing-opencl-in-ubuntu-1204.html). This step often causes problems, contact the [openworm-discuss](https://groups.google.com/forum/#!forum/openworm-discuss) mailing list if you encounter issues. The AMD drivers include samples in `/opt/AMDAPP/samples/opencl/bin` which you can use to verify your OpenCL support is working.
 
 You'll also need a variety of libraries. In ubuntu, install the dependencies with:
@@ -42,7 +42,8 @@ ldconfig -p | grep opencl
 
 Also you may need to give compiler path to OpenCL header files usually you can find them in `/usr/include/CL` if they there than you don't need do anything. In othe case you can edit makefile directly and add directory to OpenCL headers by adding options `-I/path/to/opencl_includes/` or you can copy folder with header into `/usr/include/` but you should have root permission for doing that.
 
-**Mac**: stay in the top-level folder. You need before run export several environment variables:
+## Mac
+stay in the top-level folder. You need before run export several environment variables:
 
 ```bash
 export PYTHONHEADERDIR=/usr/local/Cellar/python/<version_of_installed_pythonFramework>/Python.framework/Headers/