make it clear that license should be the spdx id
make it clear that license should be the spdx id

waldyrious/choosealicense.com,waldyrious/choosealicense.com,eogas/choosealicense.com,github/choosealicense.com,eogas/choosealicense.com,waldyrious/choosealicense.com,github/choosealicense.com,github/choosealicense.com,eogas/choosealicense.com