Update README to be consistent with changes in pkcs11.
Update README to be consistent with changes in pkcs11.

endocode/cfssl,rolandshoemaker/cfssl,geligaoli/cfssl,cloudflare/cfssl,rolandshoemaker/cfssl,drcapulet/cfssl,codyli520/cfssl,drcapulet/cfssl,mitchcapper/cfssl,APTy/cfssl,mitchcapper/cfssl,APTy/cfssl,mitchcapper/cfssl,sfurman3/cfssl,endocode/cfssl,cloudflare/cfssl,geligaoli/cfssl,APTy/cfssl,sfurman3/cfssl,geligaoli/cfssl,APTy/cfssl,codyli520/cfssl,codyli520/cfssl,rolandshoemaker/cfssl,rolandshoemaker/cfssl,cloudflare/cfssl,endocode/cfssl,geligaoli/cfssl,geligaoli/cfssl,drcapulet/cfssl,rolandshoemaker/cfssl,cloudflare/cfssl,APTy/cfssl,sfurman3/cfssl,endocode/cfssl,sfurman3/cfssl,codyli520/cfssl,sfurman3/cfssl,codyli520/cfssl,endocode/cfssl,drcapulet/cfssl,drcapulet/cfssl