added information to plot

README.md

@@ -70,3 +70,5 @@ For example, we can statistically show that the prison-punishment was "invented"
 Output:
 
 ![plot](src/imprison-gender-time.png)
+
+On the y axis we see the ratio of females/males which were sentenced to prison... by mid-19th century almost half of males and females were sentenced to prison in Old Bailey's court