Update index.html

stages/draw-geneproduct/index.html

@@ -54,7 +54,7 @@ <h2>Your Mission</h2>
 		<li>Select <b>GeneProduct</b> from the <b>Data Node</b> palette in the <b>Objects</b> tab.</li>
                 <li>Click on the canvas to place the node.</li>
                 <li>Double-click on the node to open the <b>DataNode properties</b> dialog.</li>
-                <li>Search for “ACO2”. Choose any of the entries that represents an exact match for “ACO2”, and choose the identifier type from either of HGNC, Ensembl or Entrez (in order of priority).</li>
+                <li>Search for “ACO2”. Choose any of the entries that represents an exact match for “ACO2”, and choose the identifier from either HGNC, Ensembl or Entrez (in order of priority).</li>
 		<li>To select an identifier, click once to highlight the row in the results list, and then click <b>OK</b>. Alternatively, double-click on the row.</li>
 		<li>Click <b>OK</b> again to close the node properties window.</li>
                 <li>Done!</li>