Update README.md

README.md

@@ -26,14 +26,16 @@ This project is being developed and maintained for free by a community of users.
   version 4.1.0 or higher required.
 - Install [ST Visual Development](http://www.st.com/en/development-tools/stvd-stm8.html).
 - Install [Java](https://www.java.com/endownload/).
-- Open JavaConfigurator.jar
+- Open JavaConfigurator.jar customize the parameters and click Compile & Flash
 - Or use supplied .bat scripts, e.g. `src/controller/compile_and_flash.bat` 
 - With 32-bit Windows systems, replace the files in the \tools\cygwin\bin folder with those in the bin_32.zip file
 
 ### Linux and MacOS
+- Install [SDCC](http://sdcc.sourceforge.net/index.php#Download).
+  version 4.1.0 or higher required.
 - Install Stm8flash `git clone https://github.com/vdudouyt/stm8flash.git && cd stm8flash && make && sudo make install`
 - Install [Java](https://www.java.com/endownload/).
-- Open JavaConfigurator.jar
+- Open JavaConfigurator.jar customize the parameters and click Compile & Flash
 - And/Or use supplied shell script `compile_and_flash_20.sh` 
 
 # For more information, go to the [wiki](https://github.com/emmebrusa/TSDZ2-Smart-EBike-1/wiki) instructions.