Have some JSON errors in Titanic_Kaggle.ipynb

[ktkirk]

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What does this PR do?

Fixes error in Titanic_Kaggle.ipynb

Where should the reviewer start?

Titanic_Kaggle.ipynb is not viewable in github

How should this PR be tested?

Any background context you want to provide?

What are the relevant issues?

[you can link directly to issues by entering # then the number of the issue, for example, #3 links to issue 3]

Screenshots (if appropriate)

Questions:

• Do the docs need to be updated? no
• Does this PR add new (Python) dependencies? no

[coveralls]

Coverage remained the same at 28.741% when pulling a9862fc on ktkirk:master into 524bd69 on rhiever:master.

[rhiever]

Thank you!