message: doc: Fix typo in - Terminal Settings Model.md
  Fixed typo: ocurred -> occurred
  * [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
diff: @@ -268,7 +268,7 @@ Today, if the deserialization of `CascadiaSettings` encounters any errors, an ex
  To get around this issue, when `CascadiaSettings` encounters a serialization error, it must internally record
  any pertinent information for that error, and return the simple `CascadiaSettings` as if nothing happened.
  The consumer must then call `CascadiaSettings::GetErrors()` and `CascadiaSettings::GetWarnings()` to properly
  - understand whether an error ocurred and how to present that to the user.
  + understand whether an error occurred and how to present that to the user.
  #### TerminalApp: Loading and Reloading Changes
  