Docs: Missing glfw window docs

Author: einarf

demosys/context/glfw/window.py

@@ -10,7 +10,7 @@ class Window(BaseWindow):
     """
     Window implementation using pyGLFW
     """
-    min_glfw_version = (3, 2, 1)
+    min_glfw_version = (3, 2, 1)  #: The minimum glfw version required
     keys = Keys
 
     def __init__(self):

docs/reference/demosys.context.glfw.rst

@@ -24,6 +24,8 @@ Methods
 .. automethod:: Window.key_event_callback
 .. automethod:: Window.mouse_event_callback
 .. automethod:: Window.window_resize_callback
+.. automethod:: Window.poll_events
+.. automethod:: Window.check_glfw_version
 
 Other Inherited Methods
 -----------------------
@@ -42,3 +44,4 @@ Attributes
 .. autoattribute:: Window.size
 .. autoattribute:: Window.buffer_size
 .. autoattribute:: Window.keys
+.. autoattribute:: Window.min_glfw_version