Applied modernize rules and fixed build.

Applied clang-tidy modernize rules and fixed the CMakeLists.txt
file so that it also linked against the SDL2 library.

1 files changed, 15 insertions, 4 deletions

diff --git a/README.md b/README.md
index 17176786..96a0ad70 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,25 @@
 YAGE
 ====
 
-YAGE stands for Yet Another Game Engine. It is a game engine that I am developing for a game called [Arider](https://github.com/ymherklotz/Arider). 
+Introduction
+------------
 
-YAGE uses OpenGL and SDL2 for the window creation and management and graphics.
+YAGE stands for Yet Another Game Engine. It is a game engine that I am
+developing for a game called [Arider](https://github.com/ymherklotz/Arider).
+It uses OpenGL and SDL2 for the window creation and management and graphics.
 
-Installation and Usage
+Installation and usage
 ----------------------
 
-To compile YAGE, create a build directory from the base directory. Then call cmake and point it to the directory containing [CMakeLists.txt](/CMakeLists.txt).
+To use YAGE for your own game, you should link it as a static library and
+include the [yage.hpp](/include/YAGE/yage.hpp) header in your project.
+
+Build and Testing
+-----------------
+
+To compile YAGE, create a build directory from the base directory. Then call
+cmake and point it to the directory containing.
+[CMakeLists.txt](/CMakeLists.txt).
 
 ``` shell
 mkdir build