Fix two more typos in comments (#14316)

Author: artkay

lib/elixir/lib/module/types/of.ex

@@ -341,7 +341,7 @@ defmodule Module.Types.Of do
   @doc """
   Builds a type from the struct info.
   """
-  # TODO: This function shuold not receive args_types once
+  # TODO: This function should not receive args_types once
   # we introduce typed structs. They are only used by exceptions.
   def struct_type(struct, info, args_types \\ []) do
     term = dynamic()

lib/mix/lib/mix/pubsub.ex

@@ -17,7 +17,7 @@ defmodule Mix.PubSub do
   # modules are available, so we start the local subscriber process
   # separately with `start/0`, and then start the listeners later
   # with `start_listeners/0`. The subscriber is going to accumulate
-  # events and reply them once the listenres are started.
+  # events and reply them once the listeners are started.
 
   @spec start :: :ok
   def start do