docs: note Databricks liquid clustering AUTO/NONE keywords in clustered_by docs

Author: EhabEasee

docs/concepts/models/overview.md

@@ -363,6 +363,8 @@ Learn more about these properties and their default values in the [model configu
 ### clustered_by
 :   Clustered by is an optional property for engines such as Bigquery that support clustering.
 
+    Note: Databricks supports the liquid clustering keywords AUTO and NONE, e.g. (`clustered_by AUTO`). To cluster by a column called `auto` or `none`, use parentheses and backticks, e.g. ``clustered_by (`auto`)``.
+
 ### columns
 :   By default, SQLMesh [infers a model's column names and types](#conventions) from its SQL query. Disable that behavior by manually specifying all column names and data types in the model's `columns` property.