Update cheatsheet.md

Author: sangam14

content/en/docs/reference/kubectl/cheatsheet.md

@@ -390,6 +390,7 @@ Verbosity | Description
 `--v=2` | Useful steady state information about the service and important log messages that may correlate to significant changes in the system. This is the recommended default log level for most systems.
 `--v=3` | Extended information about changes.
 `--v=4` | Debug level verbosity.
+`--v=5` | Trace level verbosity.
 `--v=6` | Display requested resources.
 `--v=7` | Display HTTP request headers.
 `--v=8` | Display HTTP request contents.