clear supported pg versions

closes #592

docs/explanations/install.rst

@@ -55,6 +55,18 @@ You can also use your OS package manager.
       choco install postgrest
       scoop install postgrest
 
+
+.. _pg-dependency:
+
+Supported PostgreSQL versions
+=============================
+
+=============== =================================
+**Supported**   PostgreSQL >= 9.6
+=============== =================================
+
+PostgREST works with all PostgreSQL versions starting from 9.6.
+
 Running PostgREST
 =================
 
@@ -101,13 +113,6 @@ For a complete reference of the configuration file, see :ref:`configuration`.
 
   To test that the system path is set correctly, run ``pg_config`` from the command line. You should see it output a list of paths.
 
-.. _pg-dependency:
-
-PostgreSQL dependency
----------------------
-
-To use PostgREST you will need an underlying database. We require PostgreSQL 9.6 or greater. You can use something like `Amazon RDS <https://aws.amazon.com/rds/>`_ but installing your own locally is cheaper and more convenient for development. You can also run PostgreSQL in a :ref:`docker container<pg-in-docker>`.
-
 Docker
 ======