README updated.

README.md

@@ -1,3 +1,5 @@
+#CloonelJump
+##Description
 CloonelJump is an open source clone of the more popular Doodle Jump.
 In this SDL/C++ game the player has to continously jump over platforms and
 climb to the top in a never-ending scenario. Platforms that scroll down past
@@ -5,3 +7,29 @@ the bottom of the screen will disappear, meaning that missing a jump and falling
 to the bottom of the screen leads to the character's death and player's game
 over.
 Climb up as much as you can to make the highest record.
+
+##Requirements
+###Platforms
+CloonelJump is being developed on 64 bit Linux. At the moment that's the only supported platforms, but in the future it will be ported to SailfishOS and Android.
+###Dependencies
+At the moment, CloonelJump needs the following libraries to run:
+
++ libPNG
++ SDL2
++ Boost
+
+Additionally, to build it you will need cmake.
+
+##Building
+Run cmake to generate the project for your platform. For debug builds using ninja I run:
+
+    cd ~
+    mkdir cloonel_build
+    cd cloonel_build
+    cmake -DCMAKE_BUILD_TYPE=Debug -GNinja <path_to_the_source>
+    ninja
+
+Replace Debug with Release for a Release build, and omit the -G parameter to use the default generator on your platform, if you don't use ninja.
+
+##Contact
+If you want to talk to me, you can find me on IRC Freenode most of the time as King_DuckZ