Updated readme with building instructions.

README.md

@@ -17,6 +17,34 @@ Dependencies
 Optional:  
 [https://github.com/mendsley/tinystl](https://github.com/mendsley/tinystl)
 
+Building
+--------
+
+Getting source:
+
+	git clone git://github.com/bkaradzic/bx.git
+	git clone git://github.com/bkaradzic/bgfx.git
+	cd bgfx
+	make
+
+After calling make, .build/projects/* directory will be generated. All intermediate files generated by compiler will be inside .build directory structure. Deleting .build directory at any time is safe.
+
+Visual Studio 2008:
+
+	start .build/projects/vs2008/bgfx.sln
+
+Linux 64-bit:
+
+	make -R linux-release64
+
+Other platforms:
+
+	make -R <configuration>
+
+Configuration is <platform>-<debug/release><32/64>. For example:
+
+	linux-release32, nacl-debug64, android-release32, etc.
+
 Notice
 ------