[Keyboard] handwired/trackpoint: refactor and readme cleanup (#5325)

* handwired/trackpoint: refactor

- layout macro KEYMAP renamed to LAYOUT
- keymap now uses #include QMK_KEYBOARD_H

* handwired/trackpoint: readme cleanup

- fix wiring layout image URL
- update readme structure

* handwired/trackpoint: rename readme to lowercase

* handwired/trackpoint: update header files to use #pragma once

keyboards/handwired/trackpoint/README.md

@@ -1,10 +0,0 @@
-# IBM Trackpoint demonstration
-
-This is just a simple demo to show how to integrate IBM Trackpoint in QMK.
-
-Wiring used in the demonstration:
-![Wiring example](http://imgur.com/8ghG2U8)
-
-Some documentation:
-* [How to wire IBM Trackpoint](https://github.com/alonswartz/trackpoint)
-* [QMK documentation](https://docs.qmk.fm/)

keyboards/handwired/trackpoint/config.h

@@ -1,5 +1,4 @@
-#ifndef CONFIG_H
-    #define CONFIG_H
+#pragma once
 
 #include "config_common.h"
 
@@ -66,5 +65,3 @@
 
 #define LOCKING_SUPPORT_ENABLE
 #define LOCKING_RESYNC_ENABLE
-
-#endif

keyboards/handwired/trackpoint/keymaps/default/keymap.c

@@ -1,7 +1,7 @@
-#include "trackpoint.h"
+#include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-    [0] = KEYMAP(
+    [0] = LAYOUT(
         KC_BTN1,    KC_BTN3,    KC_BTN2 \
     )
 };

keyboards/handwired/trackpoint/readme.md

@@ -0,0 +1,19 @@
+# IBM Trackpoint demonstration
+
+This is just a simple demo to show how to integrate IBM Trackpoint in QMK.
+
+Wiring used in the demonstration:  
+![Wiring example](https://i.imgur.com/8ghG2U8.png)
+
+Some documentation:
+
+- [How to wire IBM Trackpoint](https://github.com/alonswartz/trackpoint)
+
+Keyboard Maintainer: [The QMK Community](https://github.com/qmk)  
+Hardware Supported: Teensy  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make handwired/trackpoint:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

keyboards/handwired/trackpoint/trackpoint.h

@@ -1,13 +1,10 @@
-#ifndef TRACKPOINT_H
-#define TRACKPOINT_H
+#pragma once
 
 #include "quantum.h"
 
-#define KEYMAP( \
+#define LAYOUT( \
   k00, k01, k02  \
 ) \
 { \
   { k00, k01, k02} \
 }
-
-#endif