explanation of column headings

templates/eastings.html

@@ -18,6 +18,11 @@ Coordinate systems in Austria are explained in:<br>
 <a href="/handbook/survey/coord.htm">Basic Coordinate Systems</a>.
 
 <p>The data in the table immediately below has been hand-entered and is sometimes very wrong.
+<p>For the Cave column, if there is an official cave name, then it is shown. 
+Otherwise whatever other name we can find for it is shown <em>in italics</em>.
+For the Entrance column, if the entrance has a name (e.g. Gr&uuml;ner Eingang in Schwarzmooskogeleish&ouml;hle) then it is shown.
+ Otherwise it says "Anon:" followed by whatever other name we can find for it, usually the entrance id slug,  <em>in italics</em>.
+
 <table>
 <tr><th>Cave</th><th>Entrance</th><th>Easting</th><th>Northing</th><th>tag</th><th>tag exact</th><th>tag other</th><th>slug</th></tr>
 {% for ent in ents %}
@@ -28,14 +33,14 @@ Coordinate systems in Austria are explained in:<br>
     {% if c.official_name %}
         {{c.official_name|safe}}
     {% else %}
-        Unnamed: <em>{{c|safe}}</em>
+        <em>{{c|safe}}</em>
     {% endif %}</a><br>
   {% endfor %}</td>
   <td style="text-align:left">
     {% if ent.name %}
         {{ent.name|safe}}
     {% else %}
-        Unnamed: <em>{{ent|safe}}</em>
+        Anon: <em>{{ent|safe}}</em>
     {% endif %}
   </td>
   <td style="text-align:right">{{ent.easting|floatformat:2}}</td>