rn-117: minor copy edit

[stepnem]

No description provided.

[chriscool]

LGTM, but I'd like @mjaix to take a look if possible.

[mjaix]

LGTM, too, contains everything corrected from a missing comma (where I had asked myself whether to tolerate it or not) to more severe stuff. It is simply great to have you on board.
After merging, I would like to spend about half an hour (at most) to go over the complete edition once more, if time allows.

[mjaix]

***@***.*** [1]'s brilliant corrections  and supplied some additional tiny corrections and rephrasings with 0e2d9c7 [2]. Please scrutinize. [1] @stepnem https://github.com/stepnem [2] 0e2d9c7 0e2d9c7

[chriscool]

@mjaix and @stepnem, it looks great to me. Thanks both!