diff --git a/demo.txt b/demo.txt
index fecfd7f..2a0664a 100644
--- a/demo.txt
+++ b/demo.txt
@@ -1,3 +1,4 @@
 This is a Demo.txt file.
-This is the second line
-This is third line
+This is the second line.
+This is third line.
+This is the fourth line.