The source project of this merge request has been removed.
Update tech-gtk.page.
- Removed the space between "web" and "site" (changed to "website")
- Capitalized Git in "git repositoryy..." (Because all the items in the list have their first letter in caps and Git is a name)
- Removed the "Mailing Lists" section (mailing lists are discontinued) and added link to GNOME Discourse in the same list.