Add content for topic: "The DOM"

[DanielOrmeno]

Add course content for The DOM.

Overview

This module is intended to cover the basics of the document object model (DOM), why the dom is needed, how nodes are organized in the DOM and introductory content for the building blocks of web pages (HTML, CSS and Javascript).

Guidelines

Partial contributions are welcome! You are not expected to cover or provide all the content for this topic, all types of contributions are encouraged!

You are encouraged to take credit for your contribution, drop your name in the list of contributors for each topic (found in the topic's readme.md file)

All content must be added to the dom folder.

When submitting your PR, if possible, provide a rough estimate of how long it will take to consume the content.

Please update the links in the table of contents in the main README.md file as part of your PR.

File structure

When creating course content, please use the following file structure.

 Introduction-to-the-web
 |-- assets
 |    |--> Module's common images and files
 |-- dom
 |    |-- readme.md -> topic content
 |    |-- assets
 |    |     |--> Topic specific assets 
 |    |-- exercises
 |    |     |--> Topic specific exercises (if any) 

On contributing content and Plagiarism

Please be mindful with the content you include. If you quote or use content created by someone else, always give credit to the original author and make sure that you have their permission to share their content.

Contributions that copy commercial courses, or that fail to provide references to the original source will be removed or declined.

[carl-evans]

Hey Daniel I can write a small piece about the DOM, covering what you mentioned above. Are you happy if I work on this?

[DanielOrmeno]

That would be amazing! Thank you. If you are interested in participating in Hacktoberfest, remember to submit the PR during the month of October so that it counts towards the PR count.

[DanielOrmeno]

I'm still looking for contributors to enhance the current content.