DOC: A few spelling fixes

Author: mgeier

examples/play_long_file.py

@@ -103,7 +103,7 @@ def callback(outdata, frames, time, status):
 except KeyboardInterrupt:
     parser.exit('\nInterrupted by user')
 except queue.Full:
-    # A timeout occured, i.e. there was an error in the callback
+    # A timeout occurred, i.e. there was an error in the callback
     parser.exit(1)
 except Exception as e:
     parser.exit(type(e).__name__ + ': ' + str(e))

examples/rec_gui.py

@@ -25,7 +25,7 @@
 
 
 def file_writing_thread(*, q, **soundfile_args):
-    """Write data from queue to file until *None* is recieved."""
+    """Write data from queue to file until *None* is received."""
     # NB: If you want fine-grained control about the buffering of the file, you
     #     can use Python's open() function (with the "buffering" argument) and
     #     pass the resulting file object to sf.SoundFile().