Update README.md

Author: realA10001986

install/README.md

@@ -1,29 +1,5 @@
 This folder holds all files necessary for immediate installation on your Dash Gauges. Here you'll find
-- a binary of the current firmware, ready for upload to the device;
-- the latest audio data
+- a binary of the current firmware, ready for upload to the device ("xxx.bin");
+- the latest matching sound-pack ("sound-pack-dgXX.zip")
 
-## Firmware Installation
-
-If a previous version of the Dash Gauges firmware is installed on your device's ESP32, you can update easily using the pre-compiled binary. Enter the Config Portal, click on "Update" and select the pre-compiled binary file provided in this repository ([install/dashgauges-A10001986.ino.nodemcu-32s.bin](https://github.com/realA10001986/Dash-Gauges/blob/main/install/dashgauges-A10001986.ino.nodemcu-32s.bin)) in the top file selector and click *Update*.
-
-If you are using a fresh ESP32 board, please see [dashgauges-A10001986.ino](https://github.com/realA10001986/Dash-Gauges/blob/main/dashgauges-A10001986/dashgauges-A10001986.ino) for detailed build and upload information, or, if you don't want to deal with source code, compilers and all that nerd stuff, go [here](https://install.out-a-ti.me) and follow the instructions.
-
- *Important: After a firmware update, the "empty" LED might blink for short while after reboot. Do NOT unplug the device during this time.*
-
-## Sound-pack installation
-
-The sound-pack is not updated as often as the firmware itself. If you have previously installed the latest version of the sound-pack, you normally don't have to re-install it when you update the firmware. Only if the "Empty" LED signals "SOS" (three short blinks, three long blinks, three short blicks) during boot, a re-installation/update is needed.
-
-The first step is to download "install/sound-pack-dgXX.zip" and extract it. It contains one file named "DGA.bin".
-
-Then there are two alternative ways to proceed. Note that both methods *require an SD card*.
-
-1) Through the Config Portal. Click on *Update*, select the "DGA.bin" file in the bottom file selector and click *Upload*. 
-
-2) Via SD card:
-- Copy "DGA.bin" to the root directory of of a FAT32 formatted SD card;
-- power down the Dash Gauges,
-- insert this SD card into the slot and 
-- power up the Dash Gauges; the audio data will be installed automatically.
-
-See also [here](https://github.com/realA10001986/Dash-Gauges/blob/main/README.md#sound-pack-installation).
+For installation instructions, see [here](../README.md#firmware-installation).