Merge pull request #532 from v-geberr/0706-fix-luis-pages

move Language understanding under Cog services

docs-ref-mapping/reference.yml

@@ -128,6 +128,11 @@
         landingPageType: Service
         children:
         - com.microsoft.azure.cognitiveservices.search.imagesearch*
+      - name: Language Understanding 
+        uid: azure.java.sdk.landingpage.services.cognitiveservices.Client.languageUnderstanding
+        landingPageType: Service
+        children:
+        - com.microsoft.azure.cognitiveservices.language.luis*
       - name: News Search
         uid: azure.java.sdk.landingpage.services.cognitiveservices.Client.newsSearch
         landingPageType: Service