PayPal this morning announced the launch of Checkout with Crypto, a new feature that will allow consumers to check out at millions of online businesses using cryptocurrency. The feature expands on PayPal’s current investments in the cryptocurrency market, which include its partnership with Paxos to power its service that allows customers to buy, sell and hold a range of cryptocurrencies, and more recently, its acquisition of cryptocurrency security startup Curv. According to PayPal, customers with cryptocurrency holdings in the U.S. will be able to check out using their cryptocurrency at…