Bump docs version to 6.0

llvm-svn: 308462
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: dd2f4e0288b45af73b3b3c59444e405e934b8a98
diff --git a/docs/conf.py b/docs/conf.py
index 17fb401..bb231ac 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -47,9 +47,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '5.0'
+version = '6.0'
 # The full version, including alpha/beta/rc tags.
-release = '5.0'
+release = '6.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.