feat(security-group): Update docs

Author: keerthi-gp

website/docs/r/is_network_acl_rule.html.markdown

@@ -9,7 +9,7 @@ description: |-
 
 # ibm_is_network_acl_rule
 
-Provides a network ACL rule resource with `icmp`, `tcp`, `udp`, `any`, `icmp_tcp_udp`, `ah`, `esp`, `gre`, `ip_in_ip`, `l2tp`, `rsvp`, `sctp`, `vrrp`. For other protocols, value of number_<N>, where <N> is the protocol number in decimal from 0 to 255 (e.g., number_99).
+Provides a network ACL rule resource with `icmp`, `tcp`, `udp`, `any`, `icmp_tcp_udp`, `ah`, `gre`, `ip_in_ip`, `l2tp`, `rsvp`, `sctp`, `vrrp`. For other protocols, value of number_<N>, where <N> is the protocol number in decimal from 0 to 255 (e.g., number_99).
 (Note: A selection of well-known protocols uses their standard names (e.g., tcp for protocol 6). For these, the corresponding number_<N> value must not be used (e.g., number_6 is invalid — use tcp instead). Each protocol has exactly one valid identifier, either a named protocol or a number_<N> ). 
 This allows Network ACL rule to create, update, and delete an existing network ACL. For more information, about managing IBM Cloud Network ACL , see [about network acl](https://cloud.ibm.com/docs/vpc?topic=vpc-using-acls).
 

website/docs/r/is_security_group_rule.html.markdown

@@ -150,7 +150,7 @@ Review the argument references that you can specify for your resource.
   - `port_min`- (Required, Integer) The UDP port range that includes minimum bound. Valid values are from 1 to 65535.
   - `port_max`- (Required, Integer) The UDP port range that includes maximum bound. Valid values are from 1 to 65535.
 
-~> **Note:** Note: If no `tcp`, `udp`, or `icmp` block is used, you must specify the `protocol`; otherwise, it creates a rule with protocol `icmp_tcp_udp`.
+~> **Note:** Note: If no `protocol` block is specified; it creates a rule with protocol `icmp_tcp_udp`.
 
 ## Attribute reference
 In addition to all argument reference list, you can access the following attribute reference after your resource is created.