docs: fix typo in README.md

redchenjs · redchenjs · commit 643d3a7cb075 · 2018-05-04T14:49:55.000+08:00
diff --git a/README.md b/README.md
@@ -1,3 +1,3 @@
-NFC Attendence System
+NFC Attendance System
 =====================
 <img src="docs/board.png">
