From 7a9bdf714566eef19be855d4900500624bdcf234 Mon Sep 17 00:00:00 2001
From: Guangzong Chen <guangzong@pitt.edu>
Date: Sun, 26 Sep 2021 16:38:56 -0400
Subject: [PATCH] update readme

---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 82cde25..59f7c07 100644
--- a/README.md
+++ b/README.md
@@ -74,9 +74,9 @@ clean rec
 
 port function
 
-- [*] open port
-- [*] close port
-- [*] send ascii to port
+- [x] open port
+- [x] close port
+- [x] send ascii to port
 - [ ] send hex to port
 - [ ] save output to port
 - [ ] view recived data as hex