Update "metering" link in jump menu on API Ref page

The service is called "Telemetry" and not "Metering"
The current link is wrong - it should be to api-ref-telemetry.html

Change-Id: I9bd9f7162a5aaba98022bd936a70c7739a726416
Author: Diane Fleming
Merge "Update "metering" link in jump menu on API Ref page"