Added link to a french article (#100)

Added link to a french article with instructions

README.md

@@ -2,6 +2,7 @@
 This is a complete rewrite of the open source software for the ts100 soldering iron.
 This project is feature complete for use as a soldering iron, *so please suggest any feature improvements you would like!*
 A short(ish) video that goes through every single menu option in the firmware is available [over here](https://www.youtube.com/watch?v=WlnpboYfxNk)
+For the french users, there is a article which explain every thing [here](https://maelremrem.xyz/2017/09/08/electronique/outils/ralim-firmware-alternatif-ts100-test-installation/)
 
 This project was started to remove the need for USB for changing system settings.
 In the latest official firmware they have also added a settings menu system, so it is still worth comparing the two firmwares to select your preferred option.