diff --git a/doc.html b/doc.html
index e3e7d1a1..a8f76f5e 100644
--- a/doc.html
+++ b/doc.html
@@ -40,7 +40,7 @@
           <a href="http://www.poi-factory.com/garmin-csv-file-format">Garmin CSV</a>
           files, however not all format features are supported for all formats.
           Generally, GPXSee supports three kinds of data objects:</p>
-          
+
           <ul>
             <li>Tracks</li>
             <li>Routes</li>
@@ -51,7 +51,7 @@
           supports only this subset. Some formats - especially KML - have support for
           a plenty of other data objects like surfaces or even 3D structures. Those are
           not supported by GPXSee.</p>
-          
+
           <p>In addition to GPS data, data from the following sensors is supported
           by GPXSee:</p>
 
@@ -96,7 +96,7 @@
 
           <p>The map directory is recursively searched when loading the maps, so it
           may contain an arbitrary directory structure.</p>
-          
+
           <h3 id="online">Online maps</h3>
           <p>GPXSee supports most tile server based online maps out there, but the
           <a href="https://github.com/tumic0/GPXSee/tree/master/pkg/maps">list
@@ -130,10 +130,12 @@
           GPXSee. Supported map projections are Web Mercator, Transverse Mercator, UTM,
           Lambert Conformal Conic, Albers Equal Area, Lambert Azimuthal Equal Area and
           Latitude/Longitude (2D geographic). For list of supported datums and PCSs see
-          the <code>ellipsoids.csv</code>, <code>GCS.csv</code> and <code>PCS.csv</code>
+          the <a href="https://github.com/tumic0/GPXSee/blob/master/pkg/csv/ellipsoids.csv">ellipsoids.csv</a>,
+          <a href="https://github.com/tumic0/GPXSee/blob/master/pkg/csv/gcs.csv">GCS.csv</a>
+          and <a href="https://github.com/tumic0/GPXSee/blob/master/pkg/csv/pcs.csv">PCS.csv</a>
           configuration files (can be modified or overridden by user files like the map
           directory).</p>
-          
+
           <p>You may easily create offline atlases from online map services by using
           <a href="http://mobac.sourceforge.net/">Mobile Atlas Creator (MOBAC)</a>.</p>