README.md tweaks

README.md

@@ -1,21 +1,19 @@
 IfcOpenShell 
 ============
-IfcOpenShell is an open source (LGPL) software library for working with the IFC ([IFC2x3 TC1] and [IFC4]) file format.
-
-[http://ifcopenshell.org](http://ifcopenshell.org)  
-[http://academy.ifcopenshell.org](http://academy.ifcopenshell.org)
-
+IfcOpenShell is an open source ([LGPL]) software library for working with the [IFC] ([IFC2x3 TC1] and [IFC4]) file format.
+For more information, see
+* [http://ifcopenshell.org](http://ifcopenshell.org)  
+* [http://academy.ifcopenshell.org](http://academy.ifcopenshell.org)
 
 Prerequisites
-=============
+-------------
 * Git
 * CMake (2.6 or newer)
 * Windows: Visual Studio 2008 or newer with C++ toolset, MinGW not supported currently
 * *nix: GCC 4.7 or newer, or Clang (any version should work, but not tested)
 
-
 Dependencies
-============
+-------------
 * [Boost](http://www.boost.org/)
 * Open Cascade - *optional*, but required for building IfcGeom
   ([official](http://www.opencascade.org/getocc/download/loadocc/) or [community edition](https://github.com/tpaviot/oce))  
@@ -30,9 +28,9 @@ Dependencies
   For building the 3ds Max plug-in.
   All recent versions of 3ds Max (2014 and newer) are 64-bit only, so a 64-bit installation is assumed.
 
-
-Compiling on Windows
-====================
+Building IfcOpenShell
+---------------------
+### Compiling on Windows
 The preferred way to fetch and build this project's dependencies is to use the build scripts
 in win/ folder. **See [win/readme.md] for more information**. Instructions in a nutshell
 (**assuming Visual Studio 2015 x64 environment variables set**):
@@ -55,8 +53,7 @@ Alternatively, one can use the utility batch files to build and install the proj
     > build-ifcopenshell.cmd
     > install-ifcopenshell.cmd
 
-Compiling on *nix
-=================
+### Compiling on *nix
 There might be an Open CASCADE package in your operating system's software repository. If not, you will need to compile
 Open CASCADE yourself. See http://opencascade.org.
 
@@ -90,7 +87,7 @@ To build IfcOpenShell please take the following steps:
 If all worked out correctly you can now use IfcOpenShell. See the examples below.
 
 Usage examples
-==============
+--------------
 
 **Invoking IfcConvert from the command line**
 
@@ -160,6 +157,8 @@ Usage examples
     >>> # Writing IFC-SPF files to disk:
     >>> f.write("out.ifc")
 
-[win/readme.md]: https://github.com/IfcOpenShell/IfcOpenShell/tree/master/win/readme.md "win/readme.md"
+[LGPL]: https://github.com/IfcOpenShell/IfcOpenShell/tree/master/COPYING "LGPL"
+[IFC]: http://www.buildingsmart-tech.org/specifications/ifc-overview "IFC"
 [IFC2x3 TC1]: http://www.buildingsmart-tech.org/specifications/ifc-releases/ifc2x3-tc1-release "IFC2x3 TC1"
-[IFC4]: http://www.buildingsmart-tech.org/specifications/ifc-releases/ifc4-release "IFC4"
+[IFC4]: http://www.buildingsmart-tech.org/specifications/ifc-releases/ifc4-release "IFC4"
+[win/readme.md]: https://github.com/IfcOpenShell/IfcOpenShell/tree/master/win/readme.md "win/readme.md"