message: Fix Marker Placement
diff: @@ -59,11 +59,14 @@ exports.setup = async function(docId, text) {
  let position = 0;
  const lines = text.split("\n");
  + ss.insertMarker(0, MergeTree.ReferenceType.Tile, {[MergeTree.reservedTileLabelsKey]: ["pg"] });
  +
  for (let line of lines) {
  setTimeout(()=> {
  - ss.insertMarker(position - 1, MergeTree.ReferenceType.Tile, {[MergeTree.reservedTileLabelsKey]: ["pg"] });
  ss.insertText(line, position);
  position += line.length;
  + ss.insertMarker(position, MergeTree.ReferenceType.Tile, {[MergeTree.reservedTileLabelsKey]: ["pg"] });
  + position += 1;
  }, 1000);
  }
  