Fix malformed usage text on kfm fn doc page

[liamfallon]

Expected behavior

The "Flags" section on the krm fn doc page should render correctly

Actual behavior

The "Flags" section on the krm fn doc page does not render correctly

Steps to reproduce the behavior

Visit the krm fn doc page and examine the "Flags:" section

[aabhinavvvvvvv]

I'll work on this

[liamfallon]

Thanks @aabhinavvvvvvv