Add correct doc link to radosgw class import issue

PROD-36461

Change-Id: I593c7ec968f851a4894ba78b29ac4aa8445f9281
diff --git a/upgrade-mcp-release.groovy b/upgrade-mcp-release.groovy
index 99862ce..a6e5358 100644
--- a/upgrade-mcp-release.groovy
+++ b/upgrade-mcp-release.groovy
@@ -291,7 +291,7 @@
     def importErrorDetected = false
     def importErrorMessage = """Ceph classes in '${checkFile}' are used in wrong order! Please reorder it:
 '${infraClassImport}' should be placed before '${cephClassImport}' and '${cephCommonClassImport}'.
-For additional information please see %INSERT_DOC_LINK_HERE%"""
+For additional information please see https://docs.mirantis.com/mcp/q4-18/mcp-release-notes/mu/mu-15/mu-15-addressed/mu-15-dtrain/mu-15-dtrain-manual.html"""
     for (yamlClass in yamlData.classes) {
         switch(yamlClass){
           case infraClassImport: