more information added to the readme

README.md

@@ -4,7 +4,28 @@ a shell script to aid the adding of EXIF comments in photographs or images of mo
 
 ## Dependencies :
 * exiftool 
+* chafa / feh
+
+### Install exiftool
+
+$ sudo apt install exiftool
+
+### Install chafa 
+
+<https://hpjansson.org/chafa/>
+<https://github.com/hpjansson/chafa/>
+
+$ sudo apt install chafa
+
+Works for Debian Buster, but not on Stretch, ...
+Doesn't work on Ubuntu 16, ...
+
+### Install feh 
+
+$ sudo apt install feh
 
 ## Authors :
 * MB
 * slowrussia
+
+These tools were created in the context of NOOO2!