fixup clamp1 subject

subjects/cl-camp1.en.md

@@ -10,11 +10,11 @@ The instincts are coming back...
 
 Put in a file `mastertheLS` the command line that will:
 
--   list the files and folders of the current folder.
+-   list the files and directories of the current directory.
 -   Ignore the hidden files, the "." and the "..".
 -   Separates the resuls with commas.
 -   Order them by ascending order of creation date.
--   Have the folders have a `/` in front of them.
+-   Have the directories ends with a `/`.
 
 ### Hint