PSD soft-rejection

Hi! Got 7 soft-rejection and it has only one paragraph.

  1. LINE HEIGHT: To improve readability, please adjust the line height of the following text elements. Ideally, line height should be unitless.

Where should i change line height? And should i make it bigger or smaller?
Here my template:
https://drive.google.com/file/d/0B6oLK_HbZP4vMG9NYVNVLWZxeG8/view

Thank you and good luck!