message: Added debug message to spellchecker.
diff: @@ -178,7 +178,7 @@ export class SharedString extends api.CollaborativeObject {
  if (op) {
  annotateMessage.combiningOp = op;
  }
  -
  + console.log(`Debug spellcheck: ${start} -> ${end}`);
  this.client.annotateSegmentLocal(props, start, end, op);
  this.submitLocalOperation(annotateMessage);
  }
  