SOL005_86: description of attributes in "PnfdArchiveArtifactInfo" data type is updated

src/SOL005/NSDManagement/definitions/SOL005NSDescriptorManagement_def.yaml

@@ -540,7 +540,8 @@ definitions:
         $ref: "../../definitions/SOL005_def.yaml#/definitions/String"
       checksum:
         description: >
-          Checksum of the artifact file.
+          Checksum of the artifact file. Permitted hash algorithms are 
+          defined in ETSI GS NFV-SOL 004.
         $ref: "../../definitions/SOL005_def.yaml#/definitions/Checksum"
       nonManoArtifactSetId:
         description: >