update the readme with better module and class names

Author: Neradoc

README.md

@@ -10,17 +10,18 @@ circup install keyboard_layout_win_fr
 
 ### Layouts
 
-`keyboard_layout_<platform>_<lang>` modules will contain the layout information for use with the `Keyboard` to type text.
+For the plaform **platform** (win, mac) and the layout language **lang**.
+The module `keyboard_layout_platform_lang` has a class called `KeyboardLayoutPlatformLang` (the CamelCase version of the module's name). It contains the layout information for use with the `Keyboard` to type text.
 
-They require also installing the `keyboard_layout.py` file, containing the base class and methods that are used by the layout. This file should be part of adafruit_hid in the future and will be removed.
+They require also installing the `keyboard_layout` module (`keyboard_layout.mpy` in the bundle zip), containing the base class for the layout. This file should be part of adafruit_hid in the future and will then be removed.
 
 ```py
 import usb_hid
 from adafruit_hid.keyboard import Keyboard
-from keyboard_layout_win_fr import KeyboardLayoutFR
+from keyboard_layout_win_fr import KeyboardLayoutWinFr
 keyboard = Keyboard(usb_hid.devices)
-keyboard_fr = KeyboardLayoutFR(keyboard)
-keyboard_fr.write("Bonjour le monde")
+layout = KeyboardLayoutWinFr(keyboard)
+layout.write("Bonjour le monde")
 ```
 
 ### Keycodes

libraries/keyboard_layout.py

@@ -111,8 +111,9 @@ def _above128char_to_keycode(self, char):
             return self.HIGHER_ASCII[ord(char)]
 
         raise ValueError(
-            "Unsupported non-ASCII character {letter} ({num}/0x{num:02x})."
-            .format(letter=str(char), num=ord(char))
+            "Unsupported non-ASCII character {letter} ({num}/0x{num:02x}).".format(
+                letter=str(char), num=ord(char)
+            )
         )
 
     def _char_to_keycode(self, char):
@@ -127,7 +128,8 @@ def _char_to_keycode(self, char):
         keycode = self.ASCII_TO_KEYCODE[char_val]
         if keycode == 0:
             raise ValueError(
-                "No keycode available for character {letter} ({num}/0x{num:02x})."
-                .format(letter=str(char), num=char_val)
+                "No keycode available for character {letter} ({num}/0x{num:02x}).".format(
+                    letter=str(char), num=char_val
+                )
             )
         return keycode