Make doc structure consistent and up-to-date

[Julian-O]

Kivy-IOS

This is part of an effort to make the Kivy sibling projects' documentation structure consistent and up-to-date.

Unrelated fixes:

• Mild copy-edit of README
• Mention it only works on macOS

CHECKLIST

• CONTRIBUTING.md [x] If repo takes user contributions, is present [x] In root dir (not .github dir) [x] Refers to kivy/kivy Contribution Guidelines.

• LICENSE [x] If repo takes user contributions, is present. [x] Acknowledges the range of years to 2023. [x] Acknowledges Kivy Team and other contributors [x] Mentions it is an MIT License.

• CODE_OF_CONDUCT.md [x] If repo takes user contributions or hosts discussions, is present. [x] Refers to kivy/kivy CODE_OF_CONDUCT.md

• CONTACT.md [x] Refers to kivy/kivy CONTACT.md

• FAQ.md [NA] If repo is big enough for RST documentation, is present. Added anyway because it was bloating the README

• README: [x] Is a Markdown file. [x] Describes the project. [x] Describes its place in the Kivy sibling projects. [x] If CONTRIBUTING exists, mentions it. [x] If LICENSE exists, mentions it. [x] If CODE_OF_CONDUCT exists, mentions it. [x] Mentions kivy/kivy CONTACT.md [NA] Uses Python syntax colouring for embedded Python code. [x] Uses badges to display current status.

• RST documentation, if present [NA] Describes the project. [NA] Describes its place in the Kivy sibling projects. [NA] Mentions LICENSE. [NA] Mentions CONTRIBUTING [NA] Mentions CODE_OF_CONDUCT [NA] Mentions FAQ

• WORKFLOWS [x] NO_RESPONSE.yml is present if the repo has awaiting_reply tag. [x] NO_RESPONSE uses latest script versions. [x] SUPPORT.yml is present if the repo has a support tag. [x] SUPPORT.yml refers to kivy/kivy CONTACT.md

• setup.py/cfg, if present and on PyPI [x] Supplies description to PyPI [x] Supplies Python versions to PyPI [NA] Supplies Documentation, if any, to PyPI [x] Supplies GitHub link to PyPI

[misl6]

We have a conflict + the PR is in draft (I guess by mistake). Can you ping me back when is ready?

[Julian-O]

@misl6: So sorry. I believe I have those fixed now.

[Julian-O]

@misl6 Thanks again for your diligence. Updated.