doc: fix formatting of pre block

diff --git a/doc/doxygen/headers/main.h b/doc/doxygen/headers/main.h
index d821bbddb2da4691cec5dca920970bb4a6a29fa7..63dd04b65cf5f8595b1695723106b2bb71f69aad 100644 (file)
--- a/doc/doxygen/headers/main.h
+++ b/doc/doxygen/headers/main.h
@@ -251,7 +251,7 @@
  * After that, find the key <code>TAGFILES</code> in your Doxygen options file and write something like
  * <pre>
  * TAGFILES = deal.tag=http://www.dealii.org/X.Y.Z/doxygen/deal.II
- *</pre>
+ * </pre>
  * where <code>X.Y.Z</code> refers to the release you want to link to. Be sure you use
  * the matching tag file. In theory, you can also link against the developing revisions
  * of deal.II, but then you have to fear that your links may become invalid if