Fix simple typo: recurrsion -> recursion
Fix simple typo: recurrsion -> recursion

Closes #1252

andymccurdy/redis-py,redis/redis-py,andymccurdy/redis-py,alisaifee/redis-py,5977862/redis-py,andymccurdy/redis-py,mozillazg/redis-py-doc,alisaifee/redis-py,5977862/redis-py,redis/redis-py,5977862/redis-py,mozillazg/redis-py-doc