Set `memory_verification` value to `cairo1` in the README example

[mellowcroc]

The README example for calling verify-on-starknet.sh uses the strict option for memory_verification

./verify-on-starknet.sh 0x4ce7851f00b6c3289674841fd7a1b96b6fd41ed1edc248faccd672c26371b8c examples/calldata recursive keccak_248_lsb stone5 strict

This will result in the following error for all Cairo1 programs ('Invalid final_pc'), which is incomprehensible for most developers. Since the strict option is tailored for Cairo0 programs (which most devs won't use), set the default value to cairo1 instead? Or add more guidance in the docs?