add document updates

Author: laujan

articles/ai-services/content-understanding/concepts/standard-pro-modes.md

@@ -89,7 +89,7 @@ You can try out the features of both Content Understanding standard and pro mode
 
 ## Next steps
 
-For more information on document processing, *see* [Document processing overview](../document/overview.md)
+For more information on document processing, see [Document processing overview](../document/overview.md).
 
 
 

articles/ai-services/content-understanding/toc.yml

@@ -65,6 +65,9 @@ items:
     - name: Accuracy and confidence
       displayName: accuracy, confidence, analyzers, optimization, fields, scores
       href: concepts/accuracy-confidence.md
+    - name: "Modes: standard and pro"
+      displayName: standard, pro, modes, analyzers, optimization, fields
+      href: concepts/standard-pro-modes.md
     - name: 🆕 Classifiers
       displayName: classifiers, text, images, video, audio, multimodal, visual, structured, content, field, extraction
       href: concepts/classifiers.md