README.md update

README.md

@@ -88,14 +88,20 @@ such as audio support and the Dark Mod-specific plugins.
 
 # Compiling on OS X
 
+## Prerequisites
+
 To compile DarkRadiant, a number of libraries (with development headers) are
 required. You can obtain them by using [MacPorts](https://distfiles.macports.org/MacPorts/):
 
+Install MacPorts, then open a fresh console and issue these commands:
+
 ```
 sudo port install jpeg wxwidgets-3.0 pkgconfig libsigcxx2 freetype ftgl glew
 sudo port install boost libxml2 freealut libvorbis libogg openal
 ```
 
+## Build
+
 Start Xcode and open the project file in `tools/xcode/DarkRadiant.xcodeproj`.
 Hit CMD-B to start the build, the output files will be placed to a folder
 similar to this:
@@ -105,7 +111,6 @@ similar to this:
 The `DarkRadiant.app` package in that folder can be launched right away or
 copied to some location of your preference.
 
-
 # More Information
 
 A more detailed compilation guide can be found on The Dark Mod's wiki: