Improved docs for testing

Author: syrusakbary

README.md

@@ -80,8 +80,8 @@ pip install -e ".[test]"
 Well-written tests and maintaining good test coverage is important to this project. While developing, run new and existing tests with:
 
 ```sh
-py.test PATH/TO/MY/DIR/test_test.py # Single file
-py.test PATH/TO/MY/DIR/ # All tests in directory
+py.test graphene/relay/tests/test_node.py # Single file
+py.test graphene/relay # All tests in directory
 ```
 
 Add the `-s` flag if you have introduced breakpoints into the code for debugging.

README.rst

@@ -107,8 +107,8 @@ this project. While developing, run new and existing tests with:
 
 .. code:: sh
 
-    py.test PATH/TO/MY/DIR/test_test.py # Single file
-    py.test PATH/TO/MY/DIR/ # All tests in directory
+    py.test graphene/relay/tests/test_node.py # Single file
+    py.test graphene/relay # All tests in directory
 
 Add the ``-s`` flag if you have introduced breakpoints into the code for
 debugging. Add the ``-v`` ("verbose") flag to get more detailed test