The old URL points to an archived repo. The updated URL points to the catapult's landing page for trace-viewer.
@@ -83,4 +83,4 @@ Returns `Promise<Object>` - Resolves with an object containing the `value` and `
Get the maximum usage across processes of trace buffer as a percentage of the
full state.
-[trace viewer]: https://github.com/catapult-project/catapult/blob/master/tracing
+[trace viewer]: https://chromium.googlesource.com/catapult/+/HEAD/tracing/README.md