Fix sanity errors

Remove markdown backticks from documentation.

plugins/modules/dcnm_fabric.py

@@ -2649,22 +2649,18 @@
 # the ability to modify the PVLAN option.  Hence, even a valid value for
 # ENABLE_PVLAN in the playbook will generate an error.
 
-```bash
 fatal: [ndfc1]: FAILED! => {"changed": false, "msg": "The following parameter(value) combination(s) are invalid and need to be reviewed: Fabric: f3, ENABLE_PVLAN(False) requires ENABLE_SGT != True. ENABLE_SGT valid values: [False, True]. ", "response": [{}], "result": [{}]}
-```
-
-```yaml
-    -   name: merged fabrics (dcnm_send)
-        cisco.dcnm.dcnm_fabric:
-            state: merged
-            skip_validation: false
-            config:
-            -   FABRIC_NAME: MyFabric
-                FABRIC_TYPE: VXLAN_EVPN
-                BGP_AS: 65001
-                ENABLE_SGT: true
-                ENABLE_PVLAN: false
-```
+
+-   name: merge fabric MyFabric
+    cisco.dcnm.dcnm_fabric:
+        state: merged
+        skip_validation: false
+        config:
+        -   FABRIC_NAME: MyFabric
+            FABRIC_TYPE: VXLAN_EVPN
+            BGP_AS: 65001
+            ENABLE_SGT: true
+            ENABLE_PVLAN: false
 
 """
 # pylint: disable=wrong-import-position