Update high_risk_employee.py (#238)

Author: annie-payseur

src/code42cli/cmds/high_risk_employee.py

@@ -49,7 +49,7 @@ def _get_filter_choices():
 @click.group(cls=OrderedGroup)
 @sdk_options(hidden=True)
 def high_risk_employee(state):
-    """For adding and removing employees from the high risk employees detection list."""
+    """Add and remove employees from the High Risk Employees detection list."""
     pass