Update snooty.toml

Author: rustagir

snooty.toml

@@ -35,7 +35,7 @@ mdb-server = "MongoDB Server"
 mongo-community = "MongoDB Community Edition"
 mongo-enterprise = "MongoDB Enterprise Edition"
 # always set this to the docs branch (i.e. master, 1.7, 1.8, etc.)
-docs-branch = "master"
+docs-branch = "v3.4"
 version-number = "3.4"
 last-version-2-number = "2.30"
 version = "v{+version-number+}"