Documentation updates

Updated the github branch in the docs
Added a link to the Source Code in the menu

Author: rozza

docs/reference/config.toml

@@ -7,9 +7,18 @@ canonifyurls = false
 [blackfriday]
   plainIdAnchors = true
 
+
+# Update versions in mongodb.toml as well
 [[menu.main]]
     name = "API Documentation"
     pre = "<i class='fa fa-file-text-o'></i>"
     weight = 90
     identifier = "apiDocs"
     url = "http://api.mongodb.org/java/3.0"
+
+[[menu.main]]
+    name = "Source Code"
+    pre = "<i class='fa fa-github'></i>"
+    weight = 90
+    identifier = "githubLink"
+    url = "https://github.com/mongodb/mongo-java-driver/tree/3.0.x"

docs/reference/data/mongodb.toml

@@ -1,5 +1,6 @@
+# Update versions in config.toml as well
 githubRepo = "mongo-java-driver"
-githubBranch = "master"
+githubBranch = "3.0.x"
 currentVersion = "3.0"
 highlightTheme = "idea.css"
 apiUrl = "http://api.mongodb.org/java/3.0/"