As a bonus for setting up a Title Case shortcut key Ctrl+kt (while holding Ctrl, press k and t), go to Preferences
--> Keybindings-User
If you have a blank file open and close with the square brackets:
[ { "keys": ["ctrl+k", "ctrl+t"], "command": "title_case" } ]
Otherwise if you already have stuff in there, just make sure if it comes after another command to prepend a comma "," and add:
{ "keys": ["ctrl+k", "ctrl+t"], "command": "title_case" }