Properly close <address> tag.

Change-Id: I4f86849de25f1d1a35f2356c1f118f3f063674a4
diff --git a/docs/debugmon.html b/docs/debugmon.html
index cf56ef5..8021145 100644
--- a/docs/debugmon.html
+++ b/docs/debugmon.html
@@ -37,7 +37,7 @@
 <small>(as of March 6, 2007)</small></p>
 <address>
 [authors]
-<address>
+</address>
 
 <!-- last modified date can be different to the "Status date." It automatically
 updates