Fix small typos and formatting errors

[RyanLatimer]

Changes

1. Corrected a typo in the folder name Titanic_Desaster, changing it to Titanic_Disaster.
2. Added underscores to multiword folder names to improve file naming consistency.
3. This closes Issue small typos #152.

Impact of Changes

1. If a program access files by using absolute directory to leave the current folder, it will break if it references the folder that does not have the underscores. I searched for this error, and did not come across any of it.
2. Improve the readability and consistency of the naming conventions. This improves how easily the project can be expanded by keeping formatting the same.