Link to wlr, plasma and misc protocols in the wayland_protocol docs (#501)
Link to wlr, plasma and misc protocols in the wayland_protocol docs (#501)

* add a note in the wayland_protocols docs about where to find protocols that would previously have been part of wayland_protocols
vberger/wayland-client-rs,vberger/wayland-client-rs,Smithay/wayland-rs,vberger/wayland-client-rs,Smithay/wayland-rs