maintaining.html: Note location of repo for the web site

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
diff --git a/maintaining.html b/maintaining.html
index 93c18af..b403235 100644
--- a/maintaining.html
+++ b/maintaining.html
@@ -879,6 +879,14 @@
         <span class="man-page">info(1)</span>
         documents.
     </p>
+  
+
+<h2>This website</h2>
+
+    <p>
+        The Git repository for this web site is at
+	<a href="https://git.kernel.org/pub/scm/docs/man-pages/website.git/">https://git.kernel.org/pub/scm/docs/man-pages/website.git/</a>.
+    </p>
 
 
 <h2>Some history</h2>