Update README.md

Moved Golang version requirement up as it caused me some grief to discover this requirement later

README.md

@@ -21,6 +21,8 @@ G3N was heavily inspired by [three.js](https://threejs.org/).
 
 ## Dependencies
 
+**G3N requires Go 1.8+**
+
 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 distribution package manager.
 In all cases it is necessary to have a gcc compatible C compiler installed.
@@ -48,8 +50,6 @@ In all cases it is necessary to have a gcc compatible C compiler installed.
   your are using [Homebrew](https://brew.sh/) as your package manager, run:
   `brew install libvorbis openal-soft`
 
-G3N requires Go 1.8+
-
 ## Installation
 
 The following command will download the engine and all its dependencies, compile and