Merge pull request #800 from bashtage/rls-0.9.0-docs-update

DOC: Update docs for release 0.9.0

Author: bashtage

docs/contributors.py

@@ -12,7 +12,7 @@
 
 repo = g.get_repo("pydata/pandas-datareader")
 
-start = dt.datetime(2018, 9, 12, 0, 0, 0)
+start = dt.datetime(2019, 9, 26, 0, 0, 0)
 pulls = repo.get_pulls(state="closed", sort="updated", base="master", direction="desc")
 
 users = set()