Rename Astakos management commands for uniformity

[astakos] / snf-astakos-app / astakos / im / management / commands / invitation-show.py

diff --git a/snf-astakos-app/astakos/im/management/commands/invitation_show.py b/snf-astakos-app/astakos/im/management/commands/invitation-show.py
similarity index 100%
rename from snf-astakos-app/astakos/im/management/commands/invitation_show.py
rename to snf-astakos-app/astakos/im/management/commands/invitation-show.py