hm-fonts: edit

en/howto/hm-fonts.md

@@ -2,7 +2,7 @@
 
 Whether you are on #[[macos|macOS]] or [[nixos|NixOS]], you can install and setup fonts in an unified fashion with [[nix|Nix]] using #[[home-manager|home-manager]].
 
-To do this, add:
+For e.g., to install the [Cascadia Code][cascadia] font:
 
 ```nix
 {
@@ -15,7 +15,11 @@ To do this, add:
 }
 ```
 
-The above installs the [Cascadia Code](https://x.com/dhh/status/1791920107637354964) font. See [this issue](https://github.com/nix-community/home-manager/issues/605) for details.
+See [this issue](https://github.com/nix-community/home-manager/issues/605) for details.
 
->[!tip] Verify on macOS
-> To confirm that the font was successfully installed on [[macos]], you can open the "Font Book" app and search for the font. They will have been installed into `$HOME/Library/Fonts/HomeManager` folder. 
+## Verify on macOS {#macos}
+
+To confirm that the font was successfully installed on [[macos]], you can open the [Font Book][font-book] app and search for the font. They will have been installed into `~/Library/Fonts/HomeManager` folder. 
+
+[cascadia]: https://x.com/dhh/status/1791920107637354964
+[font-book]: https://support.apple.com/en-ca/guide/font-book/welcome/mac