Documentation fixes, part 2

1. docs/scripts/fabric_replace.md

- BGP_AS and FABRIC_TYPE are a required parameters, even if the fabric already exists.

2. docs/scripts/fabric_create.md

- Fix typo (LAN_Classic) should be LAN_CLASSIC.

Author: allenrobel

docs/scripts/fabric_create.md

@@ -18,8 +18,7 @@ config:
     REPLICATION_MODE: Ingress
     VRF_VLAN_RANGE: 2000-2299
   - FABRIC_NAME: YourFabric
-    FABRIC_TYPE: LAN_Classic
-    BGP_AS: 65003
+    FABRIC_TYPE: LAN_CLASSIC
 ```
 
 ## Example Usage
@@ -170,8 +169,7 @@ config:
     REPLICATION_MODE: Multicast
     VRF_VLAN_RANGE: 2000-2299
   - FABRIC_NAME: YourFabric
-    FABRIC_TYPE: LAN_Classic
-    BGP_AS: 65003
+    FABRIC_TYPE: LAN_CLASSIC
 ```
 
 ``` bash title="User config changed some MyFabric parameters"

docs/scripts/fabric_replace.md

@@ -14,6 +14,7 @@ see [dcnm_fabric](https://allenrobel.github.io/dcnm-docpoc/modules/dcnm_fabric/)
 config:
   - FABRIC_NAME: MyFabric
     FABRIC_TYPE: VXLAN_EVPN
+    BGP_AS: 65002
     REPLICATION_MODE: Ingress
   - FABRIC_NAME: YourFabric
     FABRIC_TYPE: LAN_Classic
@@ -48,6 +49,7 @@ export ND_USERNAME=admin
 config:
   - FABRIC_NAME: MyFabric
     FABRIC_TYPE: VXLAN_EVPN
+    BGP_AS: 65002
     REPLICATION_MODE: Multicast
   - FABRIC_NAME: YourFabric
     FABRIC_TYPE: LAN_Classic
@@ -248,7 +250,7 @@ config:
   - FABRIC_NAME: MyFabric
     REPLICATION_MODE: Multicast
     FABRIC_TYPE: VXLAN_EVPN
-    BGP_AS: 65004
+    BGP_AS: 65002
     DEPLOY: False
   - FABRIC_NAME: YourFabric
     FABRIC_TYPE: LAN_CLASSIC