Add missing latitude definition (#208)

Author: marcoscaceres

index.html

@@ -943,7 +943,17 @@ <h2>
                     <ol data-cite="infra">
                       <li>Let |positionData| be a [=map=] with the following
                       name/value pairs based on the acquired position data:
-                        <dl>
+                        <dl data-sort="">
+                          <dt>
+                            "latitude"
+                          </dt>
+                          <dd>
+                            A {{double}} that represents the latitude
+                            coordinates on the Earth's surface in degrees,
+                            using the [[WGS84]] coordinate system. Latitude
+                            measures how far north or south a point is from the
+                            Equator.
+                          </dd>
                           <dt>
                             "longitude"
                           </dt>