Add Readme

Makefile

@@ -1,5 +1,3 @@
-# To compile this you will need MinGW with MSYS installed in PATH
-
 CPPFLAGS=-Wall -Wno-misleading-indentation -Werror --std=c++1z
 LDFLAGS=
 INCLUDES=-Iinclude -Ipge/include

README.md

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+# About
+
+This game is written for [OLC Code Jam 2019](https://itch.io/jam/olc-codejam-2019) using modified [OLC Pixel Game Engine](https://github.com/OneLoneCoder/olcPixelGameEngine)
+
+# How to compile on Windows
+
+To compile on windows you need MinGW-32 and MSYS (or Cygwin or Git-Bash) installed in PATH
+
+## Download links: 
+- [MinGW](http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/mingw-builds/installer/mingw-w64-install.exe/download)
+- [MSYS](https://osdn.net/projects/mingw/downloads/68260/mingw-get-setup.exe/)
+
+**WARNING!** _MinGW version from second link is too old, do not install MinGW from mingw-get, install only MSYS_
+
+# How to compile on linux
+
+For Debian/Ubuntu: 
+
+    sudo apt install libx11-dev libgl-dev libpng-dev libasound2-dev
+
+
+# Make it!
+
+Just run `make` command to build