Revise README to enhance clarity and focus

Removed introductory lines and clarified the purpose of the repository.

Author: jeffmaki

README.md

@@ -1,7 +1,4 @@
-# TDEI-ExternalAPIs
-
-
-External APIs for the TDEI project.
+# TDEI-ExternalAPIs JSON Schemas
 
 This repository contains the external APIs for the Transportation Data Equity Initiative (TDEI) project. These APIs will allow application developers and data tenants to consume data from and publish data to the TDEI. The APIs support three data types: [OpenSidewalks](https://www.opensidewalks.com), [GTFS-Pathways](https://developers.google.com/transit/gtfs/reference) and [GTFS-Flex-v2](https://github.com/MobilityData/gtfs-flex/blob/master/spec/reference.md).