Expose port 8888 in Dockerfile to use jupyter notebooks from inside the docker container.

[promehul]

Explanation About What Code Achieves:

• Now by using one simple command one can use the jupyter notebooks from inside the docker container without needing to install the dependencies on local.

Screenshots/GIFs:

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Steps To Test:

• docker exec -it candis_app_1 bash
• jupyter notebook --ip 0.0.0.0 --no-browser --allow-root

[promehul]

@achillesrasquinha can I merge it? If yes then I should rebase and merge or squash and merge?