website: fix obsolete
"svn co svn://busybox.net/branches/busybox_1_12_stable"
example
diff --git a/docs/busybox.net/subversion.html b/docs/busybox.net/subversion.html
index f051422..2c4517a 100644
--- a/docs/busybox.net/subversion.html
+++ b/docs/busybox.net/subversion.html
@@ -18,9 +18,9 @@
svn co svn://busybox.net/trunk/busybox</pre>
<p>
-The current <em>stable branch</em> can be obtained with
+The <em>stable branches</em> can be obtained with
<pre>
-svn co svn://busybox.net/branches/busybox_1_12_stable
+svn co svn://busybox.net/branches/busybox_1_NN_stable
</pre>
<p>