README: Update Lauri Ranta’s hidden preferences URL

The previous URL now 404s.
.osx: Change to my computer name.

Signed-off-by: Nizar Khalife Iglesias <khalifenizar@gmail.com>
.osx: Remove hot corners.

No hot corners… ever.

Signed-off-by: Nizar Khalife Iglesias <khalifenizar@gmail.com>
.osx: Restore menu bar transparency.

Signed-off-by: Nizar Khalife Iglesias <khalifenizar@gmail.com>
.osx: Restore default scrollbar visibility.

Signed-off-by: Nizar Khalife Iglesias <khalifenizar@gmail.com>
.osx: Change to Tomorrow Night Eighties Terminal.app theme.

Signed-off-by: Nizar Khalife Iglesias <khalifenizar@gmail.com>