README Rework

[ElectronicsArchiver]

Please check the Preview.

Changes

• Added license badge
• Converted raw links to referenced ones
• General formatting / spacing
• Moved resources into Resources folder
• Moved source code into Source folder
• Added quicklinks
• Added video badges

Repository Recommendations

• Add tags, such as:
  • audio
  • sample-player
  • sequencer
  • arduino
• Disable unused widgets:
  • Releases
  • Packages
• Disable unused tabs:
  • Actions
  • Projects
  • Wiki

[marcel-licence]

Thank you very much for your pull request. I will need some time to go through all details.

I also like to use an updated folder structure but it is not supported by the Arduino IDE. I try to keep the compatibility as high as possible. I got this message when trying to open the project:

Which IDE did you use?

[ElectronicsArchiver]

Oh right, the Arduino IDE has that stupid
you have to place the ino file in a folder with the same name
limitation.

Lemme fix that.

[ElectronicsArchiver]

Generally speaking I'd use PlatformIO for such a case,
while it also isn't as good as I'd like it to be, at least it
isn't that limited in that respect.

In that regard I'd recommend not using ino files
for your non-main files, considering that they are
just .cpp / .hpp files.

[marcel-licence]

I will try to checkout your exact pull request. I am not sure how to do that. In addition to that I need some more time for a review because I also also like to reuse ideas as a general basis for all projects