doc fix

README.md

@@ -9,12 +9,12 @@ we recommend that you install the [G3N demo program](https://github.com/g3n/g3nd
 
 The engine needs an OpenGL driver installed in the system and
 on Unix like systems depends on some C libraries that can be installed using the platform package manager.
-In all cases it is necessary to have a C compiler installed.
+In all cases it is necessary to have gcc compatible C compiler installed.
 
 * For Ubuntu/Debian-like Linux distributions, install `libgl1-mesa-dev` and `xorg-dev` packages.
 * For CentOS/Fedora-like Linux distributions, install `libX11-devel libXcursor-devel libXrandr-devel libXinerama-devel mesa-libGL-devel libXi-devel` packages.
 * Currently it was not tested on OS X. We encourage some feedback.
-* For Windows it is recommended to have MingGW vx.x.x installed.
+* For Windows we tested the build using the [mingw-w64](https://mingw-w64.org) toolchain.
 
 G3N supports spatial audio using external libraries but loads these libraries
 dinamically on demand, so you can install G3N and build a 3D application
@@ -25,7 +25,8 @@ The following libraries are necessary for the optional audio support:
 * For Ubuntu/Debian-like Linux distributions, install `libopenal1` and `libvorbisfile3`
 * For CentOS/Fedora-like Linux distributions, install `libopenal1` and `libvorbisfile3 (to be verified)`
 * Currently it was not tested on OS X. We encourage some feedback.
-* For Windows its is necessary to install the following dlls: OpenAL32.dll, libogg.dll, libvorbis.dll and libvorbisfile.dll.
+* For Windows its is necessary to install the following dlls:
+  OpenAL32.dll, libogg.dll, libvorbis.dll and libvorbisfile.dll.
 
 G3N was only tested with Go1.7.4+