Update according to review comments

Author: HenrikHL

ovs_hub_ntf/v1/OVS_HUB_NTF_v1.0.0.yaml

@@ -786,6 +786,7 @@ components:
             - '234422543'
         locations:
           type: array
+          minItems: 1
           description: |
             An array of **UNLocationCode and/or facilitySMDGCode combinations** to match with this subscription filter. If the array consists of more than one item - a logical **OR** is used between the objects when matching.
 
@@ -795,7 +796,9 @@ components:
             description: |
               It is possible to provide the `UNLocationCode`, the `facilitySMDGCode` or both when specifying the location.
 
-              If multiple locations need to be provided, specify multiple objects in the `locations` array, each with its own `UNLocationCode` and/or `facilitySMDGCode`.
+              If multiple `UNLocationCode` or `facilitySMDGCode` values need to be provided, then they must be specified as separate objects in the `locations` array.
+
+              **Condition:** At least one of `UNLocationCode` and/or `facilitySMDGCode` **MUST** be specified, both are also allowed.
             properties:
               UNLocationCode:
                 type: string
@@ -818,7 +821,11 @@ components:
 
                   The codeList used by SMDG is the [SMDG Terminal Code List](https://smdg.org/wp-content/uploads/Codelists/Terminals/SMDG-Terminal-Code-List-v20210401.xlsx)
                 example: ACT
-
+          example:
+            - UNLocationCode: NLAMS
+              facilitySMDGCode: APMT
+            - UNLocationCode: DEHAM
+            - facilitySMDGCode: APMT
       required:
         - subscriptionReference
         - notificationChannel
@@ -993,6 +1000,8 @@ components:
               It is possible to provide the `UNLocationCode`, the `facilitySMDGCode` or both when specifying the location.
 
               If multiple `UNLocationCode` or `facilitySMDGCode` values need to be provided, then they must be specified as separate objects in the `locations` array.
+
+              **Condition:** At least one of `UNLocationCode` and/or `facilitySMDGCode` **MUST** be specified, both are also allowed.
             properties:
               UNLocationCode:
                 type: string
@@ -1015,6 +1024,11 @@ components:
 
                   The codeList used by SMDG is the [SMDG Terminal Code List](https://smdg.org/wp-content/uploads/Codelists/Terminals/SMDG-Terminal-Code-List-v20210401.xlsx)
                 example: ACT
+          example:
+            - UNLocationCode: NLAMS
+              facilitySMDGCode: APMT
+            - UNLocationCode: DEHAM
+            - facilitySMDGCode: APMT
       required:
         - notificationChannel
         - weekRange