Update README.md

Author: piotmag769

README.md

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 This is a project concerning simple evolution simulation.
 
 ## Stages of the day
+Each day in our world consist of the following stages:
 
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+- animals moving
+- animals eating grass
+- animals copulating
+- grass growing
+- animals losing energy
+- removing animals with no energy from the map
 
 ## Video
 To see the video of the program running click on the image below.