Fixed readme.

syrusakbary · syrusakbary · commit bf1604849e2e · 2017-10-25T14:12:36.000-07:00
diff --git a/README.md b/README.md
@@ -22,7 +22,7 @@ cd graphql-ws
 
 # Install the package
 python setup.py develop
-pip install -r requirements.txt
+pip install -r requirements_dev.txt
 
 # Demo time!
 cd examples
diff --git a/requirements_dev.txt b/requirements_dev.txt
@@ -11,3 +11,4 @@ PyYAML==3.11
 pytest==2.9.2
 pytest-runner==2.11.1
 aiohttp==2.1.0
+graphene>=2.0
