Clarifying references to TRAMS in README document (#530)

Updating and clarifying references to TRAMS in project documentation.

README.md

@@ -1,5 +1,7 @@
-# trams-data-api
-Simple api for getting data from the TRAMS system
+# academies-api
+Simple api for getting data from the central Academies Database datastore.
+
+NB: Historically this API was used to support the operations of the legacy TRAMS application, and references in legacy documentation will at times refer to it as the 'TRAMS API', etc.. This usage is entirely historical, however, and is now deprecated.
 
 ## Development Setup
 
@@ -99,4 +101,4 @@ If injected through the environment, use `ApiKeys__x` naming conventions for the
 
 The current census .csv file can be found a `TramsDataApi/CensusData/`
 
-If you need to replace this file with a newer one then add the new file to the `TramsDataApi/CensusData/` folder and then update the `CensusDataGateway.cs` file to reflect the new filename.
+If you need to replace this file with a newer one then add the new file to the `TramsDataApi/CensusData/` folder and then update the `CensusDataGateway.cs` file to reflect the new filename.