Add Celery configuration

[adriancast]

Would be nice if the cookiecutter ask the user if Celery is needed in the project

[jairoandrescastaneda]

hello, i think i could take this issue

[adriancast]

Hello @jairoufps, go for it!

Remember that you would need to change:

• Docker compose file.
• Production docker compose.
• Integration with Django to check scheduled tasks.
  If you want more background on how to implement this feel free to send me a PM on discord or just add a comment in this issue.

Have a nice day,
Adrián.