Update example template in README

Author: einarf

README.rst

@@ -113,13 +113,13 @@ effect.py
 
     class CubeEffect(effect.Effect):
         """Rotating cube with UVs and normals"""
-        def init(self):
+        def __init__(self):
             self.shader = self.get_shader('cube/cube.glsl')
             self.texture = self.get_texture('cube/texture.png')
             self.cube = geometry.cube(2.0, 2.0, 2.0)
 
         @effect.bind_target
-        def draw(self, time, target):
+        def draw(self, time, frametime, target):
             GL.glEnable(GL.GL_DEPTH_TEST)
 
             # Cheater methods in base class for lazyness
@@ -184,12 +184,10 @@ Some babble about the current state of the project:
   with only positions.
 - We only support 2D textures at the moment loaded with PIL/Pillow, but
   this is trivial to extend.
-- Resource loading is supported in the ``Effect`` class itself. In ``init()``
+- Resource loading is supported in the ``Effect`` class itself. In ``__init__()``
   you can fetch resources using for example ``self.get_shader`` or\ ``self.get_texture``.
   This will return a lazy object that will be populated after the loading
   stage is done.
-- Please do not implement ``__init__()`` as this is used to initialize
-  internal attributes in the effect class. Stick to ``init()`` for now.
 - Resources shared between effects can be put outside effect packages
   inside your project directory. For example in ``testproject/resources/shaders``
   and ``testproject/resources/textures``. Make sure you add those paths in the