Explain that local recon endpoints can be tested (#70)

Even though they shouldn't be added to the table, local recon endpoints
can be tested by going to the "Test bench" tab and entering their
address manually.

Closes #42.

src/FeatureTable.js

@@ -158,7 +158,7 @@ export default class FeatureTable extends React.Component {
                To add your service to it, follow these steps:
             </p>
             <ul>
-                <li>Make sure your service is publicly accessible - local endpoints (such as those with <code>localhost</code> or <code>127.0.0.1</code> in their address) should not be added to this table.</li>
+                <li>Make sure your service is publicly accessible - local endpoints (such as those with <code>localhost</code> or <code>127.0.0.1</code> in their address) should not be added to this table (but you can still test them in the <a href="#/client/">Test bench</a> tab).</li>
                 <li>Find out if there is already a Wikidata item about your service, your database or your identifier. You can use <a href="https://www.wikidata.org/wiki/Special:Search?ns0=1">Wikidata's search interface</a> for that. If there is not, you can <a href="https://www.wikidata.org/wiki/Special:NewItem">create a new one</a>.</li>
                 <li>Add a statement on that item, using the <a href="https://www.wikidata.org/wiki/Property:P6269">API endpoint (P6269)</a> property, adding the <a href="https://www.wikidata.org/wiki/Q64490175">OpenRefine reconciliation service API (Q64490175)</a> as <a href="https://www.wikidata.org/wiki/Property:P2700">protocol (P2700)</a> in a qualifier. You can also add a link to the documentation for the endpoint by adding a <a href="https://www.wikidata.org/wiki/Property:P2078">user manual link (P2078)</a> or <a href="https://www.wikidata.org/wiki/Property:P973">described at URL (P973)</a> qualifier. See <a href="https://www.wikidata.org/wiki/Q922063#P6269">this example for how it is done</a>.</li>
                 <li>Refresh this table - it might take a few minutes before your service appears in the table.</li>