[Keymap] Reorganization, cleanup and readmes for drashna code (#15617)

users/drashna/oled/drashna_font.h

@@ -3,8 +3,8 @@
 // additional fonts from
 // https://github.com/datacute/TinyOLED-Fonts
 
-#if __has_include("../../../../Documents/qmk/oled_font.h")
-#    include "../../../../Documents/qmk/oled_font.h"
+#if __has_include("oled_font.h")
+#    include "oled_font.h"
 #else
 
 // additional fonts from

users/drashna/oled/oled_stuff.c

@@ -162,15 +162,8 @@ void render_keylock_status(uint8_t led_usb_state) {
 
 void render_matrix_scan_rate(void) {
 #ifdef DEBUG_MATRIX_SCAN_RATE
-    char     matrix_rate[5];
-    uint16_t n     = get_matrix_scan_rate();
-    matrix_rate[4] = '\0';
-    matrix_rate[3] = '0' + n % 10;
-    matrix_rate[2] = (n /= 10) % 10 ? '0' + (n) % 10 : (n / 10) % 10 ? '0' : ' ';
-    matrix_rate[1] = n / 10 ? '0' + n / 10 : ' ';
-    matrix_rate[0] = ' ';
     oled_write_P(PSTR("MS:"), false);
-    oled_write(matrix_rate, false);
+    oled_write(get_u16_str(get_matrix_scan_rate(), ' '), false);
 #endif
 }
 

users/drashna/oled/readme.md

@@ -0,0 +1,42 @@
+# OLED Display
+
+To disable the pre genrated oled display, add `CUSTOM_OLED_DRIVER = no` to your `rules.mk`.
+
+<!-- to do: add all the stuff -->
+## OLED Font
+
+My font file has multiple fonts and multiple logs integrated into the one file.  And it uses the full 255 possible characters. 
+
+In addition to the default font and logos: 
+
+```c
+#    define OLED_FONT_5X5
+#    define OLED_FONT_AZTECH
+#    define OLED_FONT_BMPLAIN
+#    define OLED_FONT_CRACKERS
+#    define OLED_FONT_EIN
+#    define OLED_FONT_HISKYF21
+#    define OLED_FONT_SQUASH
+#    define OLED_FONT_SUPER_DIGG
+#    define OLED_FONT_ZXPIX
+```
+
+```c
+#    define OLED_LOGO_CORNE
+#    define OLED_LOGO_GMK_BAD
+#    define OLED_LOGO_GOTHAM
+#    define OLED_LOGO_HUE_MANITEE
+#    define OLED_LOGO_LOOSE
+#    define OLED_LOGO_SETS3N
+#    define OLED_LOGO_SKEEB
+```
+
+Additionally, the font file allows for external oled font files, instead.  This allows for additional files that cannot be hosted in the QMK Repo. 
+
+## Display
+
+A picture is worth a thousand words.  So here are two: 
+
+![Right](https://i.imgur.com/4XFOVKBl.jpg)
+
+![Left](https://i.imgur.com/W5RX4pAl.jpg)