KDE developer onboarding is good now

I made substantial changes in the KDE Developer Platform documentation over the years. I am effectively its docs maintainer and have the largest number of commits in the repository. This is due in large part because I started contributing to it in 2021, applied as a KDE documentation contractor in late 2023, and started officially working with KDE development onboarding docs in 2024. I’m one of multiple furries contributing to KDE. :3