doc/user: fix broken link to "Observations on trackpoint input data"

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
(cherry picked from commit 556e4114b8e804b478feb50009373cbb4d854034)

diff --git a/doc/user/trackpoints.rst b/doc/user/trackpoints.rst
index 02b1a6eab11fac644f34103b16f749413c541b65..4a9b52152c3274cfae31b9f7afec1c6a3540178b 100644 (file)
--- a/doc/user/trackpoints.rst
+++ b/doc/user/trackpoints.rst
@@ -50,7 +50,7 @@ decreases, the delta decrease first, then the reporting rate until the
 trackpoint is in a neutral state and no events are reported. Trackpoint data
 is hard to generalize, see
 `Observations on trackpoint input data
-<a href="https://who-t.blogspot.com/2018/06/observations-on-trackpoint-input-data.html">`_
+<https://who-t.blogspot.com/2018/06/observations-on-trackpoint-input-data.html>`_
 for more details.
 
 .. figure:: trackpoint-delta-illustration.svg