Update TOC.md

Author: Owen Duncan

docs/analysis-services/tabular-model-programming-compatibility-level-1200/TOC.md

@@ -1,10 +1,10 @@
 # [Tabular Model Programming for Compatibility Level 1200 or higher](tabular-model-programming-for-compatibility-level-1200.md)
 
+# [Understanding Tabular Object Model (TOM) in Analysis Services AMO](introduction-to-the-tabular-object-model-tom-in-analysis-services-amo.md)
 # [Add a data source to Tabular model (Analysis Services AMO-TOM)](add-a-data-source-to-tabular-model-analysis-services-amo-tom.md)
 # [Connect to existing Analysis Services Tabular server and database](connect-to-existing-analysis-services-tabular-server-and-database.md)
 # [Create and deploy an empty database (Analysis Services AMO-TOM)](create-and-deploy-an-empty-database-analysis-services-amo-tom.md)
 # [Create Tables, Partitions, and Columns in a Tabular model](create-tables-partitions-and-columns-in-a-tabular-model.md)
 # [Handling errors in the TOM API (Analysis Services AMO-TOM)](handling-errors-in-the-tom-api-analysis-services-amo-tom.md)
 # [Install, distribute, and reference the Tabular Object Model](install-distribute-and-reference-the-tabular-object-model.md)
-# [Introduction to the Tabular Object Model (TOM) in Analysis Services AMO](introduction-to-the-tabular-object-model-tom-in-analysis-services-amo.md)
 # [List existing databases on a Tabular server (Analysis Services AMO-TOM)](list-existing-databases-on-a-tabular-server-analysis-services-amo-tom.md)