update README

Author: jnak

examples/flask_sqlalchemy/README.md

@@ -9,7 +9,7 @@ Getting started
 ---------------
 
 First you'll need to get the source of the project. Do this by cloning the
-whole Graphene repository:
+whole Graphene-SQLAlchemy repository:
 
 ```bash
 # Get the example project code

examples/nameko_sqlalchemy/README.md

@@ -14,7 +14,7 @@ Getting started
 ---------------
 
 First you'll need to get the source of the project. Do this by cloning the
-whole Graphene repository:
+whole Graphene-SQLAlchemy repository:
 
 ```bash
 # Get the example project code