fix: typo in README

[mmattel]

@phil-davis Info: the two blanks at the end of the list item have been intentional.

There are two ways making a next line in markdown showing a text in the next line but as part of a list item.

• This is either two blanks a the end of the line starting the list item or
• Having a number of blanks in the preceeding line(s).

As we only have one preceeding line, I decided to have two blanks on the list item line. I need to revert the change removing two blanks therefore.

This is one of the reasons I really dislike markdown because you do not see the intention of what you are doing...

[phil-davis]

Info: the two blanks at the end of the list item have been intentional.

I did not make those changes myself. My IDE "helpfully" removed whitespace automagically!