Add script to install site_icons

README.md

@@ -2,11 +2,15 @@
 
 Fedi links that open on your preferred instance!
 
-## Building
+## Building and Running
 
 To compile TypeScript, the build script assumes Deno is installed.
 
-When you have Deno and Rust installed, simply use Cargo to build the project
+1. [Install Rust via rustup](https://rustup.rs/)
+2. [Install Deno](https://deno.com/)
+3. Run `install-binary-deps.sh` (this installs the icon scraper and possibly
+   more in the future)
+4. Use Cargo to build the project:
 
 ```sh
 # For example, to build for release, you can do

install-binary-deps.sh

@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+cargo install site_icons