Add a comment for keywords with snippets
Change completion help shortcut to Ctrl+F1
Add docs for the "F1 for details" shortcut to calltip
Italic shortcut info
Same style for "Tab to insert snippet"
Only do the HasSnippet() check when necessary
Only show "Press F1" text when necessary
Add TemplateItem to override Description for shortcut hint
Change Help shortcut back to just F1
Change "show" to "toggle"
Merge pull request #411 from Gama11/DocumentCompletionShortcuts

Document completion shortcuts