Docs: update shortcut information

[Romein van Buren]

This information is still correct for Rolens 0.2.1, but it should be updated in 0.3.0.

rolens/website/data/shortcuts.json

Lines 2 to 10 in 8a75185

 "collections": [ 
   { "description": "Open Stats panel", "option": true, "ctrl": true, "symbol": "H", "link": "/user-guide/collections/stats/" }, 
   { "description": "Open Find panel", "option": true, "ctrl": true, "symbol": "F", "link": "/user-guide/collections/find/" }, 
   { "description": "Open Insert panel", "option": true, "ctrl": true, "symbol": "I", "link": "/user-guide/collections/insert/" }, 
   { "description": "Open Update panel", "option": true, "ctrl": true, "symbol": "U", "link": "/user-guide/collections/update/" }, 
   { "description": "Open Remove panel", "option": true, "ctrl": true, "symbol": "R", "link": "/user-guide/collections/remove/" }, 
   { "description": "Open Indexes panel", "option": true, "ctrl": true, "symbol": "X", "link": "/user-guide/collections/indexes/" }, 
   { "description": "Open Aggregate panel", "option": true, "ctrl": true, "symbol": "A", "link": "/user-guide/collections/aggregate/" } 
 ],