Updated Install WLED binary (markdown)

Install-WLED-binary.md

@@ -1,8 +1,30 @@
 ### Flashing method 1: esptool
 
+- First of all, please follow the steps to install esptool.py [here](https://github.com/espressif/esptool).
+- Download the latest [release binary](https://github.com/Aircoookie/WLED/releases) file!
+- Make sure only one ESP device/microcontroller is connected to your computer! Otherwise you could accidentally overwrite the wrong one. If you know the serial port, you can also add the `-port COM3` attribute after `write_flash`
+- Exectute this command:
+ESP8266
+```
+esptool.py write_flash 0x0 .\WLED_XXX.bin
+```
+ESP32 (you will need to have a bootloader installed, you can flash the Arduino blink example to do that)
+```
+esptool.py write_flash 0x10000 .\WLED_XXX.bin
+```
+- If you experience issues, run this command before trying `write_flash` again (Note: this will erase all settings stored on the ESP!)
+```
+esptool.py erase_flash
+```
 
 ### Flashing method 2: ESP Home Flasher tool
 
+This is recommended by some users as easier to use than esptool.
+
+### Flashing method 3: OTA update
+
+ You can alternatively use my [basic HTTP OTA updater](https://github.com/Aircoookie/ESP8266MinimalHTTPUpdater) sketch and upload the binary! This requires the Arduino IDE and ESP8266 core installed.
+If your device is already running a firmware with built-in OTA capability, you can probably use that as well.
 
 ### What binary should I use?