minor docs patch

hi again. as a followup to my ajax comments patch, i'm also submitting...a
docs patch! c'mon, you know docs get you all hot and bothered. :P

it's very minor; it just describes how to invoke template variables more
explicitly. it took me a while to figure this out when i was learning
pyblosxom, so i figured i'd try to help others avoid that pain. (then again,
i'm probably just slow. :P)

it's against svn. it's really small, so i'm including it inline here.

*** docsrc/chapter_flavours.docbook     (revision 929)
--- docsrc/chapter_flavours.docbook     (working copy)
***************
*** 211,216 ****
--- 211,223 ----
   <para>
   This is the list of variables that are available to your templates.
   Additionally, plugins that you are using will add additional variables.
+
+ To use a variable in a template, simply prefix the variable name with $.
+ For example, this would display your blog's title as a heading:
+
+ <programlisting role="shell"><h2>$title</h2>
+ </programlisting>
+
   To get a complete list of what variables are available in your blog, use
   the debug renderer by changing the renderer property in your
   <filename>config.py</filename> file to debug like this:


-Ryan

--
http://snarfed.org/

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