Update README.md

Author: atc1441

README.md

@@ -30,7 +30,7 @@ Here is a list of all the Compatible watches that can be flashed with this "Hack
 https://gist.github.com/atc1441/d0a3c1f5ee69ab901bccba4eb47a6e4e
 
 ### FitBootloaderDFU2.0.1.zip
-This installs the SoftDevice version 2.0.1 and an Bootloader for SD2.0.1
+This installs the SoftDevice version 2.0.1 and an Bootloader for SD2.0.1 useable when on SD5.0.1
 #### To create your own DFU update files for SD2.0.1 you need to use nrfutilV0.5.3:
 https://github.com/NordicSemiconductor/pc-nrfutil/releases/tag/v0.5.3