correct some spellings

docs/usermanual.html

@@ -56,19 +56,19 @@
 				    </div>
 				    <h4>How to provide list(s) of element(s)</h4>
 				    <p>
-				    On the right of the example page, two tabs allow you to input lists.
+				    On the right side of the example page, two tabs are available:
 				    	<ul>
-				    		<li><b>"Paste lists":</b> you can fill each of the six textareas with your own data
-				    		    (<b>warning:</b> one element per line!).
-				    			If the same item is given multiple times, this one will be considered as unique. <br/>
+				    		<li><b>"Paste lists":</b> fill textareas with your own data (<b>warning:</b> one element per 
+				    			line!).
+				    			If the same item is given multiple times, this one will be considered only once. <br/>
 				    			You can also customize the list labels using the text field on the top of each textarea.
-				    			The length of the name is limited at eleven characters.
+				    			The length of the name is limited at 11 characters.
 				    		</li>
-				    		<li><b>"Upload lists":</b> you can define upload parameters (field separator, header line)
-				    			and browse your computer to select one text delimited file (<b>warning:</b> each line
-				    			must have the same field number!).
+				    		<li><b>"Upload lists":</b> define upload parameters, such as field separator, header line,
+				    			and browse files on your computer to select one text delimited file (<b>warning:</b> each line
+				    			must have the same number of fields!).
 				    			If the same item is given multiple times in a specific column, this one will be considered
-				    			as unique. <br/>
+				    			only once. <br/>
 				    		</li>
 				    	</ul>
 				    </p>