Update README.md

Author: mevdschee

README.md

@@ -1,9 +1,10 @@
 # PHP-CRUD-API (v2)
 
-Single file PHP 7 script that adds a REST API to a MySQL 5.5 InnoDB database. PostgreSQL 9.1 and MS SQL Server 2012 are fully supported.
+Single file PHP 7 script that adds a REST API to a MySQL 5.5 InnoDB database. PostgreSQL 9.1 and MS SQL Server 2012 are fully supported. 
 
-**NB: Stable "v1" branch is:**
-https://github.com/mevdschee/php-crud-api/tree/v1
+NB: This is the [TreeQL](https://treeql.org) reference implementation in PHP.
+
+NB: Are you looking for v1? It is here: https://github.com/mevdschee/php-crud-api/tree/v1
 
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