update descriptions

home/default/.config/lf/scope

@@ -1,6 +1,19 @@
 #!/bin/sh
 
 # File preview handler for lf.
+# requirements:
+# - horriblename/lf (https://github.com/horriblename/lf)
+# - chafa
+# - gnome-kra-ora-thumbnailer
+# - gnome-epub-thumbnailer
+# - webp-pixbuf-loader
+# - bat
+# - mediainfo
+# - ffmpegthumbnailer
+# - poppler
+# - atool
+# - odt2txt
+# - gpg
 
 set -C -f
 IFS="$(printf '%b_' '\n')"; IFS="${IFS%_}"