In Atticus, long URLs can sometimes cause spacing issues due to text justification. To resolve this, you have a couple of options:
Use a Soft Return: Place a soft return (Shift + Enter) before the URL begins. This separates it from the previous text and prevents the text from being spaced out due to justification.
Manually Break Up the URL: Another option is to manually break up the URL using soft returns so that it fits as desired on the line. This allows you to control the layout of the URL more precisely.
It's important to note that manually adjusting the URL in this manner will also affect its appearance in the ePub version.