Add mkdir docs

Signed-off-by: Vasek - Tom C <tom.chauveau@epitech.eu>

stdlib/europa/dagger/engine/fs.cue

@@ -1,20 +1,23 @@
 package engine
 
-// Read a file from a filesystem tree
+// Create one or multiple directory in a container
 #Mkdir: {
 	$dagger: task: _name: "Mkdir"
 
+	// Container filesystem
 	input: #FS
 
-	// Path of the directory
+	// Path of the directory to create
+	// It can be nested (e.g : "/foo" or "/foo/bar")
 	path: string
 
-	// Permission to set
+	// Permissions to set
 	mode: *0o755 | int
 
-	// Create parents' directory if they do not exist
+	// If set, it creates parents' directory if they do not exist
 	parents: *true | false
 
+	// Modified filesystem
 	output: #FS
 }
 
@@ -57,23 +60,6 @@ package engine
 	output: #FS
 }
 
-// Create a directory
-#Mkdir: {
-	@dagger(notimplemented)
-	$dagger: task: _name: "Mkdir"
-
-	input: #FS
-
-	// Path of the directory
-	path: string
-	// FIXME: permissions?
-	mode: int
-	// Create parent directories as needed?
-	parents: *true | false
-
-	output: #FS
-}
-
 // Copy files from one FS tree to another
 #Copy: {
 	$dagger: task: _name: "Copy"