Mindmup is a free online tool to create mind maps. It handles all the formatting and makes it neat and tidy. You can download your mind map as a jpg (photo) or pdf. You can control font sizes and it is easy to use. A video on how to use it is here https://1drv.ms/v/s!ApcCUC3fN_8ZgtZLUK8fAo5WlNvIWA.