New docum. and logbook/blog update

handbook/logbooks.html

@@ -117,9 +117,9 @@ copy it by email or USB stick to another laptop, edit it there and then copy it
 <p>If you are using your own laptop then you will need to either:
 <ul>
 <li>Just type up your trip as a separate file with a useful filename e.g. "logbook-myname-2018-08-03.txt", or just write it in an email, and send it to someone nerdish, or
-<li><a href="computing/basiclaptop.html">install and learn how to use</a> the version control software. 
+<li>Install and learn how to use the version control software. (This requires a <var><a href="computing//bulkupdatelaptop.html">Bulk Update Laptop</a></var>).
 And you will need to synchronise regularly (every day) to 
-ensure that the updates from all the people entering trip data are OK and don't get overwritten by ignorant use of this software.
+ensure that the updates from all the people entering trip data are OK and don't get overwritten by ignorant use of this software. Not recommended until you have been on a previous expo and have helped do the post-expo data tidy afterwards.
 </ul>
 
 <p>Logbooks are typed up and kept in the [expoweb]/years/[nnnn]/ directory as 'logbook.html'.</p>
@@ -144,6 +144,7 @@ idea to type up <i>just your trip(s)</i> in a separate file, e.g. "logbook-mynew
 when there is more than one trip on a day.</p>
 <p>Note: <var><span style="color:red">T/U</span></var> stands for "Time Underground" in minutes and/or hours. (We do not parse or collate this information so the format and units don't matter.)
 <p>Note: the <var><span style="color:red">&lt;hr /&gt;</span></var> is significant and used in parsing, it is not just prettiness.
+<p>Note: follow this format exactly. No HTML comments or  tabs or newlines.
 
 <p>Note this special format <var>"<span style="color:red">Top Camp - </span>"</var> in the triptitle line:
 <code><pre>&lt;div class="triptitle"&gt;<span style="color:red">Top Camp - </span>Setting up 76 bivi&lt;/div&gt;</pre></code>