fix release version in docs

Author: leifj

docs/conf.py

@@ -59,7 +59,7 @@ def setup(app):
 # The short X.Y version.
 version = '2.1'
 # The full version, including alpha/beta/rc tags.
-release = '2.1.0'
+release = '2.1.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.