Update IPA104 opID rule

Author: Sophia Marie Terry

tools/spectral/ipa/rulesets/IPA-104.yaml

@@ -100,12 +100,19 @@ rules:
       function: 'IPA104GetMethodHasNoRequestBody'
   xgen-IPA-104-valid-operation-id:
     description: |
-      
-    message: '{{error}} https://mdb.link/mongodb-atlas-openapi-validation#xgen-IPA-105-valid-operation-id'
-    severity: warn
+      The Operation ID must start with the verb “get” and should be followed by a noun or compound noun.
+      The noun(s) in the Operation ID should be the collection identifiers from the resource identifier in singular form.
+      If the resource is a singleton resource, the last noun may be the plural form of the collection identifier.
+
+      ##### Implementation details
+      Rule checks for the following conditions:
+        - Applies only to GET methods on single resources or singleton resources
+        - Generates the expected OperationId given the resource identifier
+        - Confirms that the existing operationId is compliant with generated IPA Compliant OperationId
+    message: '{{error}} https://mdb.link/mongodb-atlas-openapi-validation#xgen-IPA-104-valid-operation-id'
+    severity: off
     given: '#GetOperationObject'
     then:
       function: 'IPA104ValidOperationID'
       functionOptions:
-        methodName: 'get'
-        prefixes: ['/api']
+        methodName: 'get'