Panellists for seL4 summit 2023 announced

We are very fortunate to welcome five industry leaders to participate at the seL4 Summit 2023, in a session OS on seL4: so many options!. Gapfruit, Kry10, Magnetite (MIT), and UNSW will present their views on the priorities and vision for their OS on seL4. The panel will be moderated by Todd Carpenter from Galois.