fix: add usage instructions

README.md

@@ -1,6 +1,25 @@
 # neofetch-ascii
 ASCII logos I've made for neofetch
 
+## Usage
+
+1. Save `*.ascii` of choice to path accessible by host
+2. Run neofetch with `--source` flag, pointing to the `*.ascii` file.
+
+```
+neofetch --source /path/to/*.ascii
+```
+
+**OR**
+
+To persist the logo, edit neofetch's `config.conf` to include a `image_source` config.
+```ini
+[...]
+image_source="/path/to/*.ascii"
+[...]
+```
+
+
 ## [Bowser](https://github.com/LeviSnoot/neofetch-ascii/blob/ascii/bowser.ascii)
 
 ![](public/examples/bowser.png)