Add format checking to CI.

[akkoma] / .gitignore

# App artifacts
/_build
/db
/deps
/*.ez
/uploads
/test/uploads

# Prevent committing custom emojis
/priv/static/emoji/custom/*

# Generated on crash by the VM
erl_crash.dump

# Files matching config/*.secret.exs pattern contain sensitive
# data and you should not commit them into version control.
#
# Alternatively, you may comment the line below and commit the
# secrets files as long as you replace their contents by environment
# variables.
/config/*.secret.exs

# Database setup file, some may forget to delete it
/config/setup_db.psql