docs: expand README with git-lfs instructions

README.md

@@ -15,10 +15,16 @@ plugin. Then download the
 and add it using the Plasma Wallpaper settings. The file is large; roughly 20MB
 in size and has a resolution of 4032 x 3024.
 
-Alternatively, you could generate the image file yourself. Clone the repository,
-and run `kdynamicwallpaperbuilder` (available in the
-[plasma5-wallpapers-dynamic](https://github.com/zzag/plasma5-wallpapers-dynamic)
-project). The included AVIF file was run with the following command:
+## Alternate Usage
+Alternatively, you could generate the image file yourself.
+
+1. Install `git-lfs`: `sudo dnf install git-lfs`
+2. Clone this repository: `git clone https://github.com/subpop/fedora-kde-dynamic-wallpaper/`
+3. Run `kdynamicwallpaperbuilder` (available in the
+   [plasma5-wallpapers-dynamic](https://github.com/zzag/plasma5-wallpapers-dynamic)
+   project)
+
+The included AVIF file was run with the following command:
 
 ```
 kdynamicwallpaperbuilder --output f36-dynamic.avif metadata.json