fix disawllowed html tag (#8326)

Author: cxznmhdcxz

src/alertsmanagement/azext_alertsmanagement/_help.py

@@ -83,8 +83,8 @@
       - name: --filter-alert-context
         short-summary: Filter alerts by alert context (payload).
         long-summary: |
-            Filter format is <operator> <space-delimited values> where
-            Operator: one of <Equals, NotEquals, Contains, DoesNotContain>
+            Filter format is `<operator> <space-delimited values>` where
+            Operator: one of Equals, NotEquals, Contains, DoesNotContain
             Values: List of values to match for a given condition
       - name: --schedule-recurrence
         short-summary: List of recurrence pattern values

src/alertsmanagement/azext_alertsmanagement/_params.py

@@ -37,7 +37,7 @@ def load_arguments(self, _):
         c.argument('scopes', nargs='+', required=True, help='List of resource IDs (space-delimited) for scope. The rule will apply to alerts that fired on resources within that scope.')
         c.argument('enabled', arg_type=get_three_state_flag(), help='Indicate if the given alert processing rule is enabled or disabled (default is enabled).')
         c.argument('tags', tags_type)
-        c.argument('filter_severity', nargs='+', arg_group='Filter', validator=validate_severity, help='Filter alerts by severity <Sev0, Sev1, Sev2, Sev3, Sev4>')
+        c.argument('filter_severity', nargs='+', arg_group='Filter', validator=validate_severity, help='Filter alerts by severity Sev0, Sev1, Sev2, Sev3, Sev4')
         c.argument('filter_monitor_service', nargs='+', arg_group='Filter', validator=validate_monitor_service, help='Filter alerts by monitor service')
         c.argument('filter_monitor_condition', nargs='+', arg_group='Filter', validator=validate_monitor_condition, help='Filter alerts by monitor condition')
         c.argument('filter_alert_rule_name', nargs='+', arg_group='Filter', validator=validate_alert_rule_name, help='Filter alerts by alert rule name')