[doc][benchmarks] Update URL

Change URL of a .md file to post-fuchsia.git version.

Test: None
Change-Id: Iab9bc5b3ccaa1c9bda3e867299d2bfad32e3f178
diff --git a/tests/benchmarks/README.md b/tests/benchmarks/README.md
index d022cb2..9275a59 100644
--- a/tests/benchmarks/README.md
+++ b/tests/benchmarks/README.md
@@ -5,4 +5,5 @@
 More detailed instructions can be found the [CI benchmarking guide].
 
 
-[CI benchmarking guide]: https://fuchsia.googlesource.com/docs/+/master/development/benchmarking/running_on_ci.md
+[CI benchmarking guide]: https://fuchsia.googlesource.com/fuchsia/+/master/docs/development/benchmarking/running_on_ci.md
+