Set documentation version to 0.8.0 (#2847)

Author: mthrok

docs/source/conf.py

@@ -75,10 +75,10 @@
 #
 # The short X.Y version.
 # TODO: change to [:2] at v1.0
-version = 'master (' + torchvision.__version__ + ' )'
+version = '0.8.0'
 # The full version, including alpha/beta/rc tags.
 # TODO: verify this works as expected
-release = 'master'
+release = torchvision.__version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.