Add Windows for German (de_DE)

Keyboard-mappings.md

@@ -111,6 +111,19 @@ The scancode is also printed in the output of `--print-events` and can be used d
   - { key: L,        mods: Alt,        chars: "\x40"                     }
 ```
 
+### Windows
+```yml
+  - { key: OEM102,   mods: Control|Alt,    chars: "|"                    }
+  - { key: Q,        mods: Control|Alt,    chars: "@"                    }
+  - { key: Key7,     mods: Control|Alt,    chars: "{"                    }
+  - { key: Key8,     mods: Control|Alt,    chars: "["                    }
+  - { key: Key9,     mods: Control|Alt,    chars: "]"                    }
+  - { key: Key0,     mods: Control|Alt,    chars: "}"                    }
+  - { key: Key0,     mods: Control|Alt,    chars: "}"                    }
+  - { key: 12,       mods: Control|Alt,    chars: '\'                    }
+  - { key: Equals,   mods: Control|Alt,    chars: '~'                    }
+```
+
 ## Swedish (sv_SE)
 ### Mac OS
 ```yml