Creates a userspace for keymaps (#1559)

* create a user space

* adds example

* document, add readme.md

* jackhumbert userspace, ergodox keymap

layouts/community/ergodox/jackhumbert/config.h

@@ -0,0 +1,17 @@
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include QMK_KEYBOARD_CONFIG_H
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN D7
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 15     // Number of LEDs
+#define RGBLIGHT_HUE_STEP 12
+#define RGBLIGHT_SAT_STEP 255
+#define RGBLIGHT_VAL_STEP 12
+
+#define RGB_MIDI
+#define RGBW_BB_TWI
+
+#endif