+ small doc edit
+ include edit to make IntelliJ happy
CC: davies mengxr
Note to davies -- this does not fix the "WARNING: Literal block expected; none found." warnings since that seems to involve spacing which IntelliJ does not like. (Those warnings occur when generating the Python docs.)
Author: Joseph K. Bradley <joseph@databricks.com>
Closes#3669 from jkbradley/python-warnings and squashes the following commits:
4587868 [Joseph K. Bradley] fixed warning
8cb073c [Joseph K. Bradley] Updated based on davies recommendation
c51eca4 [Joseph K. Bradley] Updated rst file for pyspark.mllib.rand doc. Small doc edit. Small include edit to make IntelliJ happy.