From 4e9771b2107cebf0aff282d0e1a9d2b78a0f9f5a Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sun, 14 May 2023 13:37:38 +0800
Subject: [PATCH] feat: udpate readme

---
 README.md | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 2e54e53..b139c32 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,13 @@
 # yubikey-ca
 
-Yubikey CA Tool
\ No newline at end of file
+Yubikey CA Tool
+
+
+<br>
+
+
+Reference:
+* https://github.com/obelisk/sshcerts
+* https://github.com/obelisk/rustica
+
+