Refactor: add missing or_directory where needed.

This commit adds the missing `_or_directory` to any example which is
specifying an action affecting a file or a directory, but uses the
token `{{path/to/file}}` instead of `{{path/to/file_or_directory}}`.

pages/linux/chattr.md

@@ -2,13 +2,13 @@
 
 > Change attributes of files or folders.
 
-- Make a file or folder immutable to changes and deletion, even by superuser:
+- Make a file or directory immutable to changes and deletion, even by superuser:
 
-`chattr +i {{path}}`
+`chattr +i {{path/to/file_or_directory}}`
 
-- Make a file or folder mutable:
+- Make a file or directory mutable:
 
-`chattr -i {{path}}`
+`chattr -i {{path/to/file_or_directory}}`
 
 - Recursively make an entire folder and contents immutable: