Documentation

Adding comments

Normal comment

# Execute something
doSomething()
my_array = [a,b,c,d,e]
# my_array[1] # b
def doSomething()
	return print("Hello")
end

Multi line comment

=begin
multiply commented code
code2()
executeSomethingImportant()
=end

Cheatsheet

https://github.com/ThibaultJanBeyer/cheatsheets/blob/master/Ruby-Cheatsheet.md