fix URL lenght

fix: url lenght from 20 char to 40.
add: url,ip discritption in the footer

www/os1.html

@@ -23,7 +23,7 @@ <h3>connection settings</h3>
 	</p>
 
 	<p>OpenSprinkler IP:<br>
-	<input type="text" size="30" maxlength="20" id="os_text2" value="home.dyndns.org:8080">
+	<input type="text" size="30" maxlength="40" id="os_text2" value="home.dyndns.org:8080">
 	</p>
 
 	<p>Password:<br>
@@ -36,10 +36,19 @@ <h3>connection settings</h3>
     <button class="btn btn-lg btn-primary btn-block" id="save_button">Save</button>
     </p>
 	</div>
-	</center>
+	</center>	
 	</div>
 	<div class="footer container">
 
+	<p>
+	<b>IP or URL:</b><br>
+	Type your address of your OpenSprinkler like:<br>
+	<b><i>192.168.1.100:8080</i><br>
+	<i>athome.dyndns.com:8080</i></b><br>
+	You dont need to write <i>http://</i> in front of the IP or URL.<br>
+	The system will do it for you.<br>	
+	</p>	
+
 	</div>
     <script>
 		/*