Document the new code points
**Requirements**

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- [x] I have searched the [issues](https://github.com/ryanoasis/nerd-fonts/issues) for my request and found nothing related and/or helpful
- [x] I have searched the [FAQ](https://github.com/ryanoasis/nerd-fonts/wiki/FAQ-and-Troubleshooting) for help
- [x] I have searched the [Wiki](https://github.com/ryanoasis/nerd-fonts/wiki) for help

**Is your feature request related to a problem? Please describe.**
The list of code points are not documented.

**Describe the solution you'd like**
Document the code points. I need this info, because the Kitty terminal has a special way of loading nerd fonts. 

For it to work, you need to specify the normal non-nerd version of the font, and it will automatically load symbols from the nerd version as needed. 

But the JetBrains Mono font is named inconsistently (`JetBrainsMono Nerd Font` and `JetBrains Mono`), and I think this breaks the auto-loading.

So I have to manually specify the codepoints this way:
https://sw.kovidgoyal.net/kitty/faq/#kitty-is-not-able-to-use-my-favorite-font
```
font_family JetBrains Mono
symbol_map U+23FB-U+23FE,U+2665,U+26A1,U+2B58,U+E000-U+E00A,
U+E0A0-U+E0A3,U+E0B0-U+E0D4,U+E200-U+E2A9,U+E300-U+E3E3,
U+E5FA-U+E6AA,U+E700-U+E7C5,U+EA60-U+EBEB,U+F000-U+F2E0,
U+F300-U+F32F,U+F400-U+F4A9,U+F500-U+F8FF,U+F0001-U+F1AF0 JetBrainsMono Nerd Font
```

But this broke on the last update. I assume that the mapping have changed somewhat, so it would be nice to have it documented somewhere.
