Update README.md

Author: LuckFire

README.md

@@ -1,5 +1,7 @@
 ![banner](https://discord-extensions.github.io/assets/banners/amoled-cord.png)
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 ---
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 ### ![replugged](https://discord-extensions.github.io/assets/icons/replugged.png) **[Replugged](https://replugged.dev)**
 - [Maintained by Saltssaumure](https://github.com/MiniDiscordThemes/amoled-cord) -- please report Replugged issues to them!
 - [Direct Install](https://replugged.dev/install?identifier=dev.LuckFire.AMOLEDCord)
@@ -15,6 +17,11 @@
 https://luckfire.github.io/amoled-cord/src/amoled-cord.css
 ```
 
+Alternatively, if you want to use the BetterDiscord `.theme.css` file, you can:
+1. [Download the theme from BetterDiscord's website]((https://betterdiscord.app/Download?id=144))
+2. Open your themes folder by going to the "Vencord" category and select the "Themes" tab and press the "Open Themes Folder" button.
+3. Drag the file into that folder.
+
 ### ![stylus](https://discord-extensions.github.io/assets/icons/stylus.png) **Stylus**
 > **Warning**
 > Firefox users must have "Patch CSP to allow style assets" enabled for the theme to work. This can be found in Stylus' settings under "Advanced"