Add verbiage about SLA for all container projects

Add RUN echo 'echo -e "\n\nCRITICAL ERROR: This original location for this container is for demonstration and learning purposes only.\n There is no SLA for breaking changes and it may change at any time without notice.\n If you need to depend on it, please make your own isolated container build to depend on. (and delete this message from your copy)\n\n"' >> /root/.bashrc or something similar to dockerfiles in container projects docker files.

See AWS CLI Tools in Containers as a reference.