typo

diff --git a/doc/todo/block_external_links.mdwn b/doc/todo/block_external_links.mdwn
index f62897a887cc27faa75c9d78ffc1ee291f0b15c7..4a9e142159f9a29399e5dd77b36cda8a64f96c61 100644 (file)
--- a/doc/todo/block_external_links.mdwn
+++ b/doc/todo/block_external_links.mdwn
@@ -1,6 +1,6 @@
 I'd like the ability to block external links from anonymous users, or from
 untrusted users.  This could work by generating the HTML for the new page and
-comparing it to the HTML for the old page, looking for any new <a> tags with
+comparing it to the HTML for the old page, looking for any new &lt;a&gt; tags with
 href values that didn't exist in the old page and don't start with the URL of
 the wiki.  Comparing the HTML, rather than the input, allows usage with
 various types of input formats, and ensures that a template, shortcut, or some