Bazel Docs: Fix broken link to providers.
@@ -10,9 +10,7 @@ should be avoided when possible.)
<p>
Language-specific rules generally limit the listed targets to those with
-specific
-<a href="/rules/rules#providers">providers</a>
-.</p>
+specific <a href="https://bazel.build/extending/rules#providers">providers</a>.</p>
<p>
The precise semantics of what it means for a target to depend on another using
