README: mention the git repo

Change-Id: I1af0723c9bc1a1ebeef555e13d6f38166f5ec896
Reviewed-on: https://go-review.googlesource.com/c/telemetry/+/625736
Reviewed-by: Ian Lance Taylor <[email protected]>
Commit-Queue: Ian Lance Taylor <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Hyang-Ah Hana Kim <[email protected]>
Auto-Submit: Ian Lance Taylor <[email protected]>

Author: ianlancetaylor

README.md

@@ -30,10 +30,12 @@ change in breaking ways as the telemetry integration is refined.
 ## Contributing
 
 This repository uses Gerrit for code changes. To learn how to submit changes to
-this repository, see https://golang.org/doc/contribute.html.
+this repository, see https://go.dev/doc/contribute.
+
+The git repository is https://go.googlesource.com/telemetry.
 
 The main issue tracker for the telemetry repository is located at
-https://github.com/golang/go/issues. Prefix your issue with "x/telemetry:" in
+https://go.dev/issues. Prefix your issue with "x/telemetry:" in
 the subject line, so it is easy to find.
 
 ### Linting & Formatting