I made some changes to the docs locally yesterday. So I'll merge this PR now and update my commits to the repo as well. Please sync and make another PR once the docs are done. Many thanks.
userdata/posts/2017/use-social-commenting-services.md is changed.
userdata/pages/changelog.md is in English only (this is intentional).
I started translating your fantastic project into German. I'll comment here when all posts and pages are finished.