update status codes

Author: taylordowns2000

docs/monitor-history/status-codes.md

@@ -33,7 +33,7 @@ Every Run has a status which indicates whether it completed successfully.
 | Failed    |  🔴  |     RangeError     |      No      | Calling `state.patients[5]` when only 2 patients exist                                                                                                                       |
 | Crashed   |  🟠  |    SyntaxError     |     Yes      | You've got some bad JavaScript and the worker cannot compile your job code                                                                                                   |
 | Crashed   |  🟠  |   ReferenceError   |     Yes      | You've got an undeclared variable in your job code                                                                                                                           |
-| Cancelled |  ⚪  |                    |     Yes      | A user aborted the execution                                                                                                                                                 |
+| Cancelled |  ⚪  |                    |     Yes      | The run had been enqueued but was manually removed from the queue                                                                                                            |
 | Killed    |  🟡  |   SecurityError    |     Yes      | Your code failed security checks, e.g. tried to use `eval`                                                                                                                   |
 | Killed    |  🟡  |    ImportError     |     Yes      | You tried to import external module that we don't allow                                                                                                                      |
 | Killed    |  🟡  |      OomError      |     Yes      | Your run used more memory than allowed by the Lightning instance                                                                                                             |