Fix links, typos and rephrase some sentences wrt GitHub self service

The previous merge request contained some typos and outdated information which is corrected in this MR.

approved this merge request

@wbeaton, would you mind merging and deploying this change (typo and name of the .eclipsefdn repo is important to avoid confusion in upcoming communication with committers).

Thanks!

assigned to @wbeaton

merged

mentioned in commit 40d986f3

I noticed a few things when I accepted the last MR. I decided to merge anyway and fix later, and then never got to the last part.

Thanks for the update.

It's live.

Thanks for accepting the MR. The first MR was merged too fast, it was still WIP, will edit the title to avoid that in the future.