add joe content

Author: laujan

articles/ai-services/content-understanding/concepts/best-practices.md

@@ -23,7 +23,10 @@ When defining a schema, it's essential to provide detailed field descriptions. C
 
   * If you want to extract the date from an invoice, in addition to naming the field `"Date"`, provide a description such as:
 
-        **"The date when the invoice was issued, typically found at the top right corner of the document."**
+   ```
+           **"The date when the invoice was issued, typically found at the top right corner of the document."**
+
+   ```
 
 #####   ***Example***