Intro to Polkadot, Parachains, and Parachain Slot Auctions

"I will give a high level introduction to Polkadot, its technology (parachains, relay chain, governance, forkless upgrades, etc.), and the key challenges that Polkadot’s technology solves. Since crowdloans and parachain slot auctions will soon be in full swing on Polkadot, I'll also do an overview of this process required for any parachain to launch on Polkadot. "