update some text in audio tutorial

Author: kaikalii

site/src/other_tutorial.rs

@@ -103,7 +103,7 @@ pub fn Audio() -> impl IntoView {
 
         <Hd id="basic-synthesis">"Basic Synthesis"</Hd>
         <p>"In the online editor, you need only make an array that looks like audio samples."</p>
-        <p>"Audio samples must be either a rank 1 where each element is a sample or a rank 2 array where each row is a channel."</p>
+        <p>"Audio samples must be either a rank 1 where each element is a sample or a rank 2 array where each row is a multi-channel sample."</p>
         <p>"The samples must be between "<code>"-1"</code>" and "<code>"1"</code>". We use the "<Prim prim=Sys(SysOp::AudioSampleRate)/>" system function to get the sample rate of the audio output."</p>
         <p>"For a minimal example, here is a simple 1 second sawtooth wave:"</p>
         <Editor example="÷2 ◿1×220 ÷⟜⇡&asr"/>