added new line at the end of the file

mayur200 · mayur200 · commit 752bc5d40173 · 2020-10-15T02:05:44.000+05:30
diff --git a/strings/swap_case.py b/strings/swap_case.py
@@ -43,3 +43,4 @@ def swap_case(sentence):
     result = swap_case(s)
     print(result)
 
+
