message: Fix typo in tutorial for Go
  Fixed a typo in serialising the inventory for Orc.
diff: @@ -768,7 +768,7 @@ traversal. This is generally easy to do on any tree structures.
  for i := 9; i >= 0; i-- {
  builder.PrependByte(byte(i))
  }
  - int := builder.EndVector(10)
  + inv := builder.EndVector(10)
  ~~~
  </div>
  <div class="language-python">
  