add screenshot

README.md

@@ -4,7 +4,10 @@ Download youtube videos via a website interface. Makes it easier for everyone.
 
 ## Installation / Usage
 1) Install `ffmpeg` and `yt-dlp`. (Make sure they are on `$PATH`)
-2) Clone and run this project.
+2) Clone, build, and run this project.
 
 ## Notes / TODOs
-* Only `*.youtube.com` links work. Even though `*.yout.be` links *should*. smh
+* You need to be on the nightly channel of rust, at least for right now.
+* Make sure you open the firewall for the http connections to the selected port (default `3000`) 
+
+![Screenshot](./screenshot.png "Screenshot")