Filled out remaining TODOs

README.rst

@@ -13,7 +13,7 @@ Introduction
     :target: https://travis-ci.com/adafruit/Adafruit_CircuitPython_ILI9341
     :alt: Build Status
 
-.. todo:: Describe what the library does.
+displayio driver for ILI9341 and ILI9340 TFT-LCD displays.
 
 Dependencies
 =============
@@ -28,7 +28,41 @@ This is easily achieved by downloading
 Usage Example
 =============
 
-.. todo:: Add a quick, simple example. It and other examples should live in the examples folder and be included in docs/examples.rst.
+.. code-block:: python
+
+    import board
+    import displayio
+    import adafruit_ili9341
+
+    spi = board.SPI()
+    tft_cs = board.D9
+    tft_dc = board.D10
+
+    displayio.release_displays()
+    display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)
+
+    display = adafruit_ili9341.ILI9341(display_bus)
+
+    # Make the display context
+    splash = displayio.Group(max_size=10)
+    display.show(splash)
+
+    color_bitmap = displayio.Bitmap(320, 240, 1)
+    color_palette = displayio.Palette(1)
+    color_palette[0] = 0xFF0000
+
+    try:
+        bg_sprite = displayio.TileGrid(color_bitmap,
+                                       pixel_shader=color_palette,
+                                       position=(0, 0))
+    except TypeError:
+        bg_sprite = displayio.TileGrid(color_bitmap,
+                                       pixel_shader=color_palette,
+                                       x=0, y=0)
+    splash.append(bg_sprite)
+
+    while True:
+        pass
 
 Contributing
 ============