Edit ph.py example code

Fixes #2

Author: Musicted

pyghthouse/ph.py

@@ -94,9 +94,9 @@ class Pyghthouse:
     The following example creates a Pyghthouse and sets the 10th window of the 11th floor to orange.
     >>> from pyghthouse import Pyghthouse
     >>> p = Pyghthouse("YourUsername", "YourToken")
-    >>> p.start() # npt necessary to set image, but necessary for sending.
+    >>> p.start() # not necessary to set image, but necessary for sending.
     >>> img = Pyghthouse.empty_image()
-    >>> img[3, 9] = [255, 127, 0]
+    >>> img[3][9] = [255, 127, 0]
     >>> p.set_image(img)
 
     Full Example