Fix formating of the number list

README.md

@@ -10,6 +10,7 @@ Universal Behavior Testing Tool in Python. The script is completely self-contain
 $ ./rere.py record test.list
 ```
 The above command should create `test.list.bi` file with stdout, stderr, and returncode captured as the expected behavior. The file uses [bi format](https://github.com/tsoding/bi-format).
+
 3. Replay the command lines checking their behavior against the recorded one:
 ```console
 $ ./rere.py replay test.list.bi