Introduce changelog in docker/README.md to keep track of changes in the base image
Introduce changelog in docker/README.md to keep track of changes in the base image

Rombur/DataTransferKit,Rombur/DataTransferKit,ORNL-CEES/DataTransferKit,ORNL-CEES/DataTransferKit,Rombur/DataTransferKit,dalg24/DataTransferKit,ORNL-CEES/DataTransferKit,ORNL-CEES/DataTransferKit,dalg24/DataTransferKit,dalg24/DataTransferKit,Rombur/DataTransferKit,dalg24/DataTransferKit