Update README

README.md

@@ -2,7 +2,7 @@
 A Node.js module to detect audio features in an streaming audio source. The detector is written in Rust, and provides a Writable / Async Iterator interface to NodeJS code.
 
 > [!WARNING]
-> This is very, very alpha code. The interfaces may change at any time.
+> This is very, very alpha code. The interfaces may change at any time. The audio matching logic will also be changing heavily.
 
 At this time, the detector code assumes 16-bit 16kHz signed-integer raw audio data. Providing anything else will probably result in garbage output.
 
@@ -23,6 +23,13 @@ for await (const item of detector) {
 }
 ```
 
+> [!TIP]
+> `score` is an arbitrary value between 0 and 1. Values closer to 1 represent high similarity, but the scale is not linear. Use with caution.
+
+## The matching algorithm
+
+...I will write this later...
+
 ## Building
 
 Building this package requires a [supported version of Node and Rust](https://github.com/neon-bindings/neon#platform-support).