Add free License duration info

hhaemin · hhaemin · commit b2810d9f1028 · 2021-05-03T13:55:13.000+09:00
diff --git a/License b/License
@@ -1,2 +1,2 @@
 # 기본 라이센스
-Free
+Free for 1 year
diff --git a/calculator.py b/calculator.py
@@ -7,5 +7,6 @@ def subtract(a, b):
 
 def multiply(a, b):
     return a*b    
+    
 def divide_free(a, b):
 	return a/b
