message: spelling: activity
diff: @@ -675,8 +675,8 @@ specification.
  | event | severity | Specifies the severity of the event. The values can be: | |
  | | | **Value** | **Meaning** |
  | | | DIAGNOSTIC | Software debugging information. Meant for development. |
  -| | | ACTVITY\_LO | Low-priority events related to software execution. |
  -| | | ACTVITY\_HI | Higher priority events related to software execution. |
  +| | | ACTIVITY\_LO | Low-priority events related to software execution. |
  +| | | ACTIVITY\_HI | Higher priority events related to software execution. |
  | | | COMMAND | Events related to command execution. Should be reserved for command dispatcher and sequencer. |
  | | | WARNING\_LO | Error conditions that are of low importance. |
  | | | WARNING\_LO | Error conditions that are of critical importance. |
  