Move keycodes to their own section

docs/_summary.md

@@ -42,6 +42,22 @@
   * [Unicode](feature_unicode.md)
   * [Userspace](feature_userspace.md)
 
+* [Keycodes](keycodes.md)
+  * [Backlight](feature_backlight.md#backlight-keycodes)
+  * [Basic](keycodes_basic.md)
+  * [Bluetooth](feature_bluetooth.md#bluetooth-keycodes)
+  * [Bootmagic](feature_bootmagic.md#bootmagic-keycodes)
+  * [Layer Switching](feature_advanced_keycodes.md#switching-and-toggling-layers)
+  * [Mod+Key](feature_advanced_keycodes.md#modifier-keys)
+  * [Mod Tap](feature_advanced_keycodes.md#mod-tap)
+  * [One Shot Keys](feature_advanced_keycodes.md#one-shot-keys)
+  * [Quantum](quantum_keycodes.md)
+  * [RGB Light](feature_rgblight.md#rgblight-keycodes)
+  * [Shifted Keys](feature_advanced_keycodes.md#shifted-keycodes)
+  * [Stenography](feature_stenography.md#keycode-reference)
+  * [Thermal Printer](feature_thermal_printer.md#thermal-printer-keycodes)
+  * [US ANSI Shifted Keys](keycodes_us_ansi_shifted.md)
+
 * Reference
   * [Config Options](config_options.md)
   * [Customizing Functionality](custom_quantum_functions.md)
@@ -49,21 +65,6 @@
   * [Documentation Templates](documentation_templates.md)
   * [Glossary](glossary.md)
   * [Keymap overview](keymap.md)
-  * [Keycodes](keycodes.md)
-    * [Backlight](feature_backlight.md#backlight-keycodes)
-    * [Basic](keycodes_basic.md)
-    * [Bluetooth](feature_bluetooth.md#bluetooth-keycodes)
-    * [Bootmagic](feature_bootmagic.md#bootmagic-keycodes)
-    * [Layer Switching](feature_advanced_keycodes.md#switching-and-toggling-layers)
-    * [Mod+Key](feature_advanced_keycodes.md#modifier-keys)
-    * [Mod Tap](feature_advanced_keycodes.md#mod-tap)
-    * [One Shot Keys](feature_advanced_keycodes.md#one-shot-keys)
-    * [Quantum](quantum_keycodes.md)
-    * [RGB Light](feature_rgblight.md#rgblight-keycodes)
-    * [Shifted Keys](feature_advanced_keycodes.md#shifted-keycodes)
-    * [Stenography](feature_stenography.md#keycode-reference)
-    * [Thermal Printer](feature_thermal_printer.md#thermal-printer-keycodes)
-    * [US ANSI Shifted Keys](keycodes_us_ansi_shifted.md)
   * [Unit Testing](unit_testing.md)
 
 * For Makers and Modders