{Network} Fix #11188: Add accepted values of Protocol (#20241)

Fixes #11188

Author: RakeshMohanMSFT

src/Network/Network/help/Set-AzNetworkSecurityRuleConfig.md

@@ -264,15 +264,18 @@ Accept wildcard characters: False
 ### -Protocol
 Specifies the network protocol that a rule configuration applies to.
 The acceptable values for this parameter are:
- --Tcp
+- Tcp
 - Udp
-- A wildcard character (*) to match both
+- Icmp
+- Esp
+- Ah
+- Wildcard character (*) to match all
 
 ```yaml
 Type: System.String
 Parameter Sets: (All)
 Aliases:
-Accepted values: Tcp, Udp, *
+Accepted values: Tcp, Udp, Icmp, Esp, Ah, *
 
 Required: False
 Position: Named