Warning

I notice that the warning level is conspicuously missing from this project. Note
that other projects offer it:

import colorlog
colorlog.warning('abcde')

from logzero import logger
logger.warning('abcde')

import coloredlogs, logging
coloredlogs.install()
logging.warning('abcde')

as well as Python itself:

https://docs.python.org/library/logging#logging.warning

maybe the levels could change from this:

[1] Errors
[2] Successes
[3] Logs
[4] Info
[5] Secure

to this:

[1] Errors
[2] Warnings
[3] Successes
[4] Info
[5] Secure