Update README.rst

Author: Neradoc

README.rst

@@ -40,9 +40,9 @@ Usage Example
 
     displayio.release_displays()
 
+    spi = board.SPI()
     while not spi.try_lock():
         pass
-    spi = board.SPI()
     spi.configure(baudrate=24000000) # Configure SPI for 24MHz
     spi.unlock()
     tft_cs = board.D5