Fix typos: ourself -> ourselves, dolphine -> dolphin

Author: delirious-lettuce

examples/prompts/slow-completions.py

@@ -6,7 +6,7 @@
  `Completer` object in a `ThreadedCompleter`. This makes sure that the
  ``get_completions`` function is executed in a background thread.
 
- For the `prompt` shortcut, we don't have to wrap the completer ourself.
+ For the `prompt` shortcut, we don't have to wrap the completer ourselves.
  Passing `complete_in_thread=True` is sufficient.
 
 - We also set a `loading` boolean in the completer function to keep track of
@@ -20,7 +20,7 @@
 
 WORDS = [
  'alligator', 'ant', 'ape', 'bat', 'bear', 'beaver', 'bee', 'bison',
- 'butterfly', 'cat', 'chicken', 'crocodile', 'dinosaur', 'dog', 'dolphine',
+ 'butterfly', 'cat', 'chicken', 'crocodile', 'dinosaur', 'dog', 'dolphin',
  'dove', 'duck', 'eagle', 'elephant', 'fish', 'goat', 'gorilla', 'kangaroo',
  'leopard', 'lion', 'mouse', 'rabbit', 'rat', 'snake', 'spider', 'turkey',
  'turtle',