Index: head/en_US.ISO8859-1/articles/contributing/article.xml
===================================================================
--- head/en_US.ISO8859-1/articles/contributing/article.xml
+++ head/en_US.ISO8859-1/articles/contributing/article.xml
@@ -163,7 +163,10 @@
 
 	<listitem>
 	  <para>Build the source tree (or just part of it) with extra
-	    warnings enabled and clean up the warnings.</para>
+	    warnings enabled and clean up the warnings. You can also get a
+	    list of build warnings from our
+	    <link xlink:href="https://ci.freebsd.org">CI</link>: select a
+	    build and check "LLVM/Clang Warnings".</para>
 	</listitem>
 
 	<listitem>