Adding caption below X-axis for a scatter plot using matplotlib

Question

I am pretty new to python and to the matplotlib library. I have created a scatter plot using matplotlib and now I wish to add caption a little below the X-axis. This is my code:

Answer 1

as @Nicky V mentioned.

plt.xlabel('''Butterfly contract traded

Note: c1-c2-c3 indicates the position: long 2 times c2 and short c1 anc c3''')

Result: