added GPS Lag column description to release notes

java/com.sap.sailing.www/release_notes_analyze.html

@@ -49,6 +49,9 @@
 						<li>Fixed HighPointOverall scheme to also break a tie by looking at the ranks of the last regatta.</li>
 
 						<li>Progress indicator when expanding a race in the RaceBoard view</li>
+
+						<li>Leaderboard column "GPS Lag" shows how far a competitor's GPS signal lags behind the average
+						    tracking quality. A background color bar classifies into good/ok/bad (green/yellow/red).</li>
 					</ul>
 					
 					<h2 class="articleSubheadline">February 2014</h2>