updated README

README.md

@@ -17,9 +17,30 @@ oink full
 
 ```
 
+## Configuration
+
+Variables are split into two sections for ease-of-use: `vars` and `colors`.
+
+Targets need two fields, `name` and `path`, containing a unique name and their
+destination file respectively. They should go into the `target` array.
+
+```toml
+
+[vars]
+name = "Test User"
+
+[colors]
+example = "1A1A1A"
+
+[[target]]
+name = "oink"
+path = "/home/test/.config/oink/oink.toml"
+
+```
+
 ## Libraries
 
 - [pico-args](https://crates.io/crates/pico-args) — argument parsing
-- [tera](https://crates.io/crates/tera) — template replacement
+- [tera](https://crates.io/crates/tera) — template engine
 - [toml](https://crates.io/crates/toml) — configuration parsing