move the pumping script to googlemock

Author: kuzkry

CONTRIBUTING.md

@@ -130,8 +130,8 @@ sense) using a script. For example, the file
 
 You don't need to worry about regenerating the source files unless you need to
 modify them. You would then modify the corresponding `.pump` files and run the
-'[pump.py](googletest/scripts/pump.py)' generator script. See the
-[Pump Manual](googletest/docs/pump_manual.md).
+'[pump.py](googlemock/scripts/pump.py)' generator script. See the
+[Pump Manual](googlemock/docs/pump_manual.md).
 
 ## Developing Google Mock