[docs] Minor error in bisect documentation

Hi, The bisect library documentation includes an example with movies that is stated to "find the first movie released *on or after 1960*". The example given uses bisect.bisect, which is an alias for bisect.bisect_right, and so will find the first move released *after* 1960. This can be verified by adding in a movie from 1960. The example can be corrected by either: 1. Changing the comment to "Find the first movie released after 1960" 2. Importing bisect_left and using that instead. Thanks for your efforts in maintaining the Python docs! Best wishes, James Skelton