Remove userspace info from Quad-Function Tap Dance example (#4631)

docs/feature_tap_dance.md

@@ -185,29 +185,11 @@ Below is a specific example:
 
 ## Setup
 
-You will need a few things that can be used for 'Quad Function Tap-Dance'. The suggested setup is to create a user directory for yourself. This directory will contain rules.mk `<your_name>.c` and `<your_name>.h`. This directory should be called `<your_name>`, and located in the top level `users` directory. There should already be a few examples to look at there.
+You will need a few things that can be used for 'Quad Function Tap-Dance'. 
 
-### In `/qmk_firmware/users/<your_name>/rules.mk`
+You'll need to add these to the top of your `keymap.c` file, before your keymap. 
 
-Put the following:
 ```c
-TAP_DANCE_ENABLE = yes
-SRC += your_name.c
-```
-
-Pretty simple. It is a nice way to keep some rules common on all your keymaps.
-
-
-### In `/qmk_firmware/users/<your_name>/<your_name>.h`
-
-You will need a few things in this file:
-
-```c
-#pragma once
-
-#include "quantum.h"
-#include "process_keycode/process_tap_dance.h"
-
 typedef struct {
   bool is_press_action;
   int state;
@@ -234,18 +216,12 @@ int cur_dance (qk_tap_dance_state_t *state);
 //for the x tap dance. Put it here so it can be used in any keymap
 void x_finished (qk_tap_dance_state_t *state, void *user_data);
 void x_reset (qk_tap_dance_state_t *state, void *user_data);
-```
 
-### In `/qmk_firmware/users/<your_name>/<your_name>.c`
+```
 
-And then in your user's `.c` file you implement the functions above:
+Now, at the bottom of your `keymap.c` file, you'll need to add the following: 
 
 ```c
-#include "<your_name>.h"
-#include "quantum.h"
-#include "action.h"
-#include "process_keycode/process_tap_dance.h"
-
 /* Return an integer that corresponds to what kind of tap dance should be executed.
  *
  * How to figure out tap dance state: interrupted and pressed.
@@ -335,4 +311,6 @@ qk_tap_dance_action_t tap_dance_actions[] = {
 };
 ```
 
-And then simply use `TD(X_CTL)` anywhere in your keymap after including `<your_name>.h`.
+And then simply use `TD(X_CTL)` anywhere in your keymap.
+
+If you want to implement this in your userspace, then you may want to check out how [DanielGGordon](https://github.com/qmk/qmk_firmware/tree/master/users/gordon) has implemented this in their userspace.