Merge pull request #7 from Sonofotis/master

Update placeholder text in search bar.

templates/_basic.html

@@ -24,7 +24,7 @@
                 {%endif%}
                 Blockchain Explorer</a></h1>
         <form action="/search" method="get" class="top-search">
-            <input type="text" name="value" size="64" placeholder="Block height, Block hash, Transaction ID, or Service Node pubkey">
+            <input type="text" name="value" size="64" placeholder="Block height, Block hash, Transaction ID, Service Node pubkey or ONS">
             <input type="submit" class="PageButton" value="Search">
         </form>
     </div>