Update README.md

Author: tjclement

README.md

@@ -1,9 +1,15 @@
 # tom_tool
 T.O.M. Tool (Total overhaul maintenance tool)
 
-Simple to use recovery for the campzone 2020 badge. Use this when your badge won't boot anymore due to filesystem errors.
+Last-resort recovery for the campzone 2020 badge. Use this when your badge won't boot anymore due to filesystem errors.
 
-!! Before you can run this tool, you will need to update the STM32 chip on your badge here: https://webupdate.hackz.one.
+!! Before you can run this tool, you will need to update the STM32 chip on your badge here: https://webupdate.hackz.one. !!
+
+## Linux / Mac
+Run `pip3 install esptool pyserial requests; python3 tom_tool.py`.
+
+## Windows
+Download the latest release zip of this repository (e.g. https://github.com/jorisplusplus/tom_tool/releases/tag/beta1), unpack it completely, and run tom_tool.exe.
 
 This tool flashes the latest firmware and the stock fs on the badge with a single press on your enter key.  
 Note that this tool in current form is very experimental and should only be used as last resort.