Fixed broken doc link.

PiperOrigin-RevId: 373354869

site/docs/build-ref.html

diff --git a/site/docs/build-ref.html b/site/docs/build-ref.html
index 4daf295..ceb9470 100644
--- a/site/docs/build-ref.html
+++ b/site/docs/build-ref.html
@@ -271,7 +271,7 @@
 
 <p>
 For information about the different ways you can refer to targets, see
-<a href="guide.html#specifying-targets-to-build">target patterns</a>.
+<a href="guide.md#specifying-targets-to-build">target patterns</a>.
 </p>