Docs: add note about CMD and ENTRYPOINT commands
Docs: add note about CMD and ENTRYPOINT commands

Signed-off-by: Tomasz Kopczynski <ea73344294b1c6e2cb529d7fc98a4971de7607ac@kopczynski.net.pl>

thaJeztah/cli,Zebrilee/cli,docker/cli,docker/cli,allencloud/cli,allencloud/cli,riyazdf/cli,dnephin/cli,redpanda/cli,ashfall/cli,thaJeztah/cli,e11137/cli,redpanda/cli,cpuguy83/cli,dnephin/cli,e11137/cli,riyazdf/cli,Zebrilee/cli,cpuguy83/cli,ashfall/cli