Clarify documentation

diff --git a/doc/plugins/mdwn.mdwn b/doc/plugins/mdwn.mdwn
index 31123715d246e47ddfcedf0b628d6a071c8bed93..e22f68eda071d9bb7630bc644df311871e885bdd 100644 (file)
--- a/doc/plugins/mdwn.mdwn
+++ b/doc/plugins/mdwn.mdwn
@@ -40,7 +40,8 @@ might cause formatting that is understood by Discount to be ignored.
   preference to Text::Markdown::Discount. The default is to not use
   MultiMarkdown, and this is recommended.
 * `mdwn_footnotes`: If set to 1, implementations that support it will
-  recognise the PHP Markdown Extra syntax for footnotes. The default
+  recognise the footnote syntax originating in PHP Markdown Extra, with
+  `Footnote reference[^1]` and `[^1]: Footnote definition`. The default
   is 1.
 * `mdwn_alpha_lists`: If set to 1, Text::Markdown::Discount will
   accept letters as well as numbers in ordered list markers. The