1diff --git a/file.txt b/numbers.txt
 2similarity index 77%
 3rename from file.txt
 4rename to numbers.txt
 5index c9e9e05..a6b31d6 100644
 6--- a/file.txt
 7+++ b/numbers.txt
 8@@ -3,8 +3,9 @@ two
 9 three
10 four
11 five
12-six
13+  six
14 seven
15 eight
16 nine
17 ten
18+eleven