Docs: Add info and links for Genrules in Build Ref
@@ -374,8 +374,11 @@ app_binary
of type string. The name must be a syntactically valid target name,
as specified <a href='#name'>above</a>. In some cases, the name is
somewhat arbitrary, and more interesting are the names of the files
- generated by the rule; this is true of genrules. In other
- cases, the name is significant: for <code>*_binary</code>
+ generated by the rule, and this is true of genrules. For more information, see
+ <a href="be/general.html#genrule">
+ General Rules: genrule</a>.
+
+ In other cases, the name is significant: for <code>*_binary</code>
and <code>*_test</code> rules, for example, the rule name determines
the name of the executable produced by the build.
</p>
