Update README.md

Signed-off-by: Michal <[email protected]>

README.md

@@ -1,17 +1,30 @@
-# Dracula for [GRUB](https://gnu.org/software/grub/)
+# Crystal Linux [GRUB](https://gnu.org/software/grub/) Theme
 
-> A dark theme for [GRUB](https://gnu.org/software/grub/).
+> A customised theme for [GRUB](https://gnu.org/software/grub/) using the Crystal Linux branding.
 
-![image](https://user-images.githubusercontent.com/12242178/118198933-ebeb8a00-b41f-11eb-8742-746c9e269339.png)
+![image](https://user-images.githubusercontent.com/30374463/189643831-6e29a350-a57d-4aa6-902a-ea08b527cc39.png)
 
+## Install (Arch-based ONLY)
 
-## Install
+- Clone the PKGBUILD and enter the directory:
+```bash
+git clone https://github.com/crystal-linux/pkgbuild.grub-theme
+cd pkgbuild.grub-theme
+```
 
-All instructions can be found at [draculatheme.com/grub](https://draculatheme.com/grub).
+- Run `makepkg` to install it:
+```
+makepkg -si
+```
+
+- Append the following text to `/etc/default/grub`:
+```
+GRUB_THEME="/usr/share/grub/themes/crystal/theme.txt"
+```
 
 ## Team
 
-This theme is maintained by the following person(s) and a bunch of [awesome contributors](https://github.com/dracula/grub/graphs/contributors).
+This theme is based on the Dracula Dark theme for GRUB, created by the following person(s) and a bunch of [awesome contributors](https://github.com/dracula/grub/graphs/contributors).
 
 [![Zeno Rocha](https://github.com/pspiagicw.png?size=100)](https://github.com/pspiagicw) |
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