CI Lab blogpost: Continuously refer to developers as 'they', and avoid 'he'

This old blog post was tweeted today at https://twitter.com/gitlab/status/1194364250044678144?s=21

I do write lots of technical posts and docs, and generally avoid 'he/she'. Some parts in the blog posts are doing that, others are aligned already.

If you want to keep the original, I don't mind closing this suggestion.