templates: add provides example

templates/packages/search.html

@@ -25,7 +25,7 @@ <h2>Package Search</h2>
                 <label for="id_repo" title="Limit results to a specific repository">
                     Repository</label>{{ search_form.repo }}</div>
             <div>{{ search_form.q.errors }}
-                <label for="id_q" title="Enter keywords as desired">
+                <label for="id_q" title="Enter keywords as desired (provides are also supported e.g. 'java-environment=7')">
                     Keywords</label>{{ search_form.q }}</div>
             <div>{{ search_form.maintainer.errors }}
                 <label for="id_maintainer" title="Limit results to a specific maintainer">