Document Cleanup and Reformatting

[AcylSilane]

Thanks for creating this list, it's a great resource! I went through and organized the document a bit and added a bit of text to explain how to get started.

Here's an overview of what changed:

• Moved the Table of Contents to the start of the document
• Moved the Awesome-List badge to under the title
• Created a "Where do I Start?" section with some basic setup for a Python environment
• Created a "Training Resources" section and moved the tutorials, free courses, MOOCs, intensive programs, and colleges into it
• Created a "Data Science Toolbox" section and moved all the software and package links into it as different subsections
• Created a "Literature and Media" section and moved the "books," "book deals," "journals,", "newsletters," "bloggers," "presentations,", "podcasts," and "youtube" sections in there
• Rename "Other Lists" to "Other Awesome Lists" and moved the "Hobby" section into there
• Updated some section header titles to be more descriptive
• Removed a dead "subscribe for more links" URL (was in the old "Awesome Data Science" section)
• Added descriptions to some of the new sections.
• Miscellaneous formatting and typo fixes

[hmert]

@AcylSilane I’m absolutely speechless… thank you so much!

[AcylSilane]

Thanks for merging, glad to help :D