add license information in getting started docs and do one-click guide (#1213)

docs/graphql/manual/getting-started/docker-simple.rst

@@ -68,3 +68,8 @@ Advanced
 This was a quickstart guide to get the Hasura GraphQL engine up and running
 quickly. For more detailed instructions on deploying using Docker, check out
 :doc:`../deployment/docker/index`.
+
+License
+-------
+The Hasura GraphQL Engine is open source. View license `here <https://github.com/hasura/graphql-engine/blob/master/LICENSE>`_.
+

docs/graphql/manual/getting-started/heroku-simple.rst

@@ -53,3 +53,7 @@ Advanced
 
 This was a quickstart guide to get the Hasura GraphQL engine up and running quickly. For more detailed instructions
 on deploying using Heroku, check out :doc:`../deployment/heroku/index`.
+
+License
+-------
+The Hasura GraphQL Engine is open source. View license `here <https://github.com/hasura/graphql-engine/blob/master/LICENSE>`_.

docs/graphql/manual/getting-started/index.rst

@@ -44,3 +44,8 @@ Using an existing database
    Using an existing database <using-existing-database>
    first-graphql-query
    first-event-trigger
+
+License
+-------
+The Hasura GraphQL Engine is open source. View license `here <https://github.com/hasura/graphql-engine/blob/master/LICENSE>`_.
+

docs/graphql/manual/guides/deployment/digital-ocean-one-click.rst

@@ -307,3 +307,8 @@ Logs
 
 Where ``<container_name>`` is one of ``graphql-engine``, ``postgres`` or
 ``caddy``.
+
+License
+-------
+The Hasura GraphQL Engine is open source. View license `here <https://github.com/hasura/graphql-engine/blob/master/LICENSE>`_.
+