Update examples

examples/fromWav.html

@@ -4,6 +4,7 @@
     <script src="Vosklet.js" async defer></script>
     <script>
        async function start() {
+        // Make sure sample rate matches that in the training data
         let ctx = new AudioContext({sampleRate : 16000})
         let module = await loadVosklet()
         let model = await module.createModel("en-model.tgz","model","ID")
@@ -14,6 +15,7 @@
         recognizer.addEventListener("partialResult", ev => {
           console.log("Partial result: ", ev.detail)
         })
+        // Fetch, decode, and recognize .wav
         let wav = await fetch("example.wav")
         let audioBuf = await ctx.decodeAudioData(await wav.arrayBuffer())
         recognizer.acceptWaveform(audioBuf.getChannelData(0))