Update Readme for Rotary Encoder Usermod

Add example platformio_override.sample.ini

usermods/usermod_v2_rotary_encoder_ui_ALT/platformio–override.sample.ini

@@ -0,0 +1,17 @@
+[platformio]
+default_envs = esp32dev
+
+[env:esp32dev]
+board = esp32dev
+platform = ${esp32.platform}
+build_unflags = ${common.build_unflags}
+build_flags =
+    ${common.build_flags_esp32}
+    -D USERMOD_FOUR_LINE_DISPLAY -D USE_ALT_DISPlAY
+    -D USERMOD_ROTARY_ENCODER_UI -D ENCODER_DT_PIN=18 -D ENCODER_CLK_PIN=5 -D ENCODER_SW_PIN=19
+upload_speed = 460800
+lib_deps =
+    ${esp32.lib_deps}
+    U8g2@~2.34.4
+    Wire
+

usermods/usermod_v2_rotary_encoder_ui_ALT/readme.md

@@ -30,10 +30,23 @@ Also shows if the timer is enabled.
 
 ## Installation
 
-Please refer to the original `usermod_v2_rotary_encoder_ui` readme for the main instructions.<br/>
+Copy the example `platformio_override.sample.ini` to the root directory of your particular build and rename it to `platformio_override.ini`.
-To activate this alternative usermod, add `#define USE_ALT_DISPlAY` to the `usermods_list.cpp` file,
-or add `-D USE_ALT_DISPlAY` to the original `platformio_override.ini.sample` file.
 
+To activate this alternative usermod, add `#define USE_ALT_DISPlAY` (NOTE: CASE SENSITIVE) to the `usermods_list.cpp` file, or add `-D USE_ALT_DISPlAY` to your `platformio_override.ini` file
+
+### Define Your Options
+
+* `USERMOD_ROTARY_ENCODER_UI`       - define this to have this user mod included wled00\usermods_list.cpp
+* `USERMOD_FOUR_LINE_DISPLAY`       - define this to have this the Four Line Display mod included wled00\usermods_list.cpp
+                                        also tells this usermod that the display is available
+                                        (see the Four Line Display usermod `readme.md` for more details)
+* `USE_ALT_DISPlAY`                 - Mandatory to use Four Line Display
+* `ENCODER_DT_PIN`                  - defaults to 18
+* `ENCODER_CLK_PIN`                 - defaults to 5
+* `ENCODER_SW_PIN`                  - defaults to 19
+* `USERMOD_ROTARY_ENCODER_GPIO`     - GPIO functionality:
+                                        `INPUT_PULLUP` to use internal pull-up
+                                        `INPUT` to use pull-up on the PCB
 
 ### PlatformIO requirements