Update README.md

nopnop2002 · nopnop2002 · commit f6212811c2ad · 2020-05-20T06:55:24.000+09:00
diff --git a/README.md b/README.md
@@ -22,6 +22,12 @@ I forked from [eeprog-0.7.6-tear5.tar.gz](https://www.richud.com/wiki/Rasberry_P
 
 ---
 
+# Software requirement
+
+WiringPi Library   
+
+---
+
 # Build
 for 24C02   
 cc -o main main.c at24c.c -DC02
