Fix typo in a doc

[niku]

No description provided.

[RobertDober]

Thank you for your PR, actually this is not a typo, I use iff in this sense: https://www.merriam-webster.com/dictionary/iff

[niku]

Oh, thank you.
I haven't known that word 😭

Thank you for your fast and kind answer.
I'll close the PR.

[RobertDober]

I have not closed the PR because I thought that maybe iff is not such a good idea.

On one hand it is a precise way, but if unknown by many, maybe replacing iff by a clearer if and only if, or exactly if might be a good idea,

Using English only,nmaybe we should express ourselves in a simpler way, what do you think?

[niku]

I agree with your thoughts.

My opinion is using if and only if makes the document be better.

It is a little bit verbose for some people.
But it is easier to grab what the words mean for non-native English reader like me.

[RobertDober]

Thank you for your feedback, here we go e65fcf6