Update address.mdx

docusaurus/docs/schema/reference/addresses/address.mdx

@@ -15,6 +15,20 @@ import TabItem from '@theme/TabItem';
 
 # Address
 
+The Overture Address type is a compilation of open address datasets usually
+published by local authorized sources. In our initial release, we use the datasets
+that are collected and distributed by [OpenAdddresses](https://openaddresses.io).
+
+The initial schema for addresses is fairly simple and is expected to expand into
+more complex addressing schemes.
+
+## Feature types
+The address theme has a single feature type.
+- `address` is a point feature type representing a single address point.
+
+## Theme concepts
+
+
 <table>
   <tbody>
   <tr>