Update reduce-duplication.md

Author: rrrutledge

measuring/goals/reduce-duplication.md

@@ -4,10 +4,10 @@ Why should be build things more than once?
 We're already busy and behind where we'd like to be.
 We want to build just once software that solves commmon problems and then share it widely throughout the company.
 
-## Metrics
+## Questions
 
-* [Example Metric](./gqm_example_metric.md)
+* [Who uses the InnerSource project?](../questions/who-uses.md)
 
-## Questions
+## Metrics
 
-* [Example Question](./gqm_example_question.md)
+* [Example Metric](./gqm_example_metric.md)