added Using SZS link

diff --git a/doc.mdwn b/doc.mdwn
index 4d4a4f2ddeffb44ae940c204fa118231f39f623a..6330d89610056e8cf6b27ed317cbf8e9639ff709 100644 (file)
--- a/doc.mdwn
+++ b/doc.mdwn
@@ -31,6 +31,8 @@ Explains root and extra instances in Kerberos.
 * [[Summer Reading|doc/summer-reading]] <br />
 Documents and books that various SIPB members recommend reading.
 
+* [[Using SZS (the SMS to Zephyr Relay)|doc/szs]] <br />
+Send and receive text messages through Zephyr.
 
 
 ## IAP Classes and Cluedumps