added wiki command

[hjoaquim]

Description

• Summary of the change / bug fix.
  Added wiki command -> type wiki and find a simple title/url/summary for any expression (from the wikipedia)

• Screenshot of the feature or the bug before/after fix, if applicable.
  

another one, using the "-e":

• Relevant motivation and context.
  It's hard for average users/ users with no financial education to keep up with all the jargons we use on the terminal

How has this been tested?

• Provide instructions so we can reproduce.
  type "wiki -e EXPRESSIONS" or "wiki EXPRESSIONS" from anywhere

Checklist:

• Update our Hugo documentation following these guidelines.
• Update our tests following these guidelines.
• Make sure you are following our CONTRIBUTING guidelines.
• If a feature was added make sure to add it to the corresponding scripts file.

Others

• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My code passes all the checks pylint, flake8, black, ... To speed up development you should run pre-commit install.
• New and existing unit tests pass locally with my changes. You can test this locally using pytest tests/....

[hjoaquim]

@DidierRLopes thought it would be really cool to have some kind of glossary on the terminal - leveraging the Wikipedia API would allow users to search for virtually anything if they have doubts regarding the meaning of something while using the terminal without leaving (and even pursue more info through the URL if wanted)
What are your thoughts on this?

[colin99d]

Great work! I am proud of you.

[DidierRLopes]

Couple of comments, but very nice addition!!