Add pre requirements to README.md

[heliomar-pena]

Explanation

We have checked, and Readme.md starts directly on "Run using npm install npm start". We think pre requirements should be added as a new section to explain what is needed to run the project. Example: Install Node, NPM, Git

Screenshots

Checklist

This issue can be closed when the following tasks are completed:

• [x] A link is needed to be added to Node's documentation
• [x] need to add a link to the Node documentation or download link to Git
• [x] Added documentation about what Git means or how to use it
• [x] Added documentation about what Node is or how to use it

[samuel-vergara-leon]

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