Update README with Basic Operations section and version requirements #58

Job	Run time
basic-operations/anchor/burn	15m 18s
basic-operations/anchor/update	15m 37s
basic-operations/anchor/create	15m 5s
counter/anchor	15m 7s
basic-operations/anchor/close	15m 53s
basic-operations/anchor/reinit	16m 56s
	1h 33m 56s

Provide feedback