Rework MODELS.md

[crystall1nedev]

From the pull request work of the big documentation update, MODELS.md had been reworked to be simpler for the end users to recognize their models and identifiers.

• Removes models unsupported by the patcher
• Introduces the Apple-given names for each device + year
• Simplify comments into small links with brief descriptions

Should make it a lot easier for people wondering whether or not their devices are supported, and what issues they might face.

[Jazzzny]

MacBook5,2 has lost its model-specific note

[khronokernel]

Thanks for the PR!