Update README.md with New Keybinds

Author: tmioton

README.md

@@ -1,8 +1,11 @@
 # UltimateFlox
 2D flocking simulation using GLFW, Glad, and GLM - your very own bird box.
 
-Use the ```1``` key to switch to line rendering mode.<br>
-Use the ```2``` key to switch to filled rendering mode.<br>
+Use the ```1``` key to switch to filled rendering mode.<br>
+Use the ```2``` key to switch to classic rendering mode.<br>
+Use the ```b``` key to toggle display of boids.<br>
+Use the ```v``` key to toggle display of vision radii.<br>
+Use the ```s``` key to toggle speed debug vision mode.<br>
 Use the ```Space``` key to pause the simulation.<br>
 
 Create a ```flox.txt``` file in the executable's directory to control the flock size.