Improve tooltip for stats.

diff --git a/sphinx/index.rst b/sphinx/index.rst
index 3f1286a15806cea5879b849a60000477dea9d9c1..8034a21a3f3c0480ae128d3c5bd4f772a32ab5e0 100644 (file)
--- a/sphinx/index.rst
+++ b/sphinx/index.rst
@@ -96,7 +96,7 @@ the terminal you can use :command:`apt-get`::
 
 .. raw:: html
 
- <p><img border="0" src="_static/nd_subscriptionstats.png" title="Subscription statistics" /></p>
+ <p><img border="0" src="_static/nd_subscriptionstats.png" title="Statistics of new repository subscriptions for all supported releases. Note: subscription is only done once per machine." /></p>
 
 Popularity Contest
 ------------------