Update docker container run example
Update docker container run example

add `SECRET_KEY_BASE` enviroment

jasonvillalon/dockerfiles,stormtoy/dockerfiles,dunnock/dockerfiles,stormtoy/dockerfiles,amos6224/dockerfiles,rafael/dockerfiles,rafael/dockerfiles,dmsilaev/dockerfiles,amos6224/dockerfiles,dunnock/dockerfiles,jasonvillalon/dockerfiles,dmsilaev/dockerfiles,seapy/dockerfiles,seapy/dockerfiles