Add justfile to .editorconfig

.editorconfig

@@ -23,6 +23,10 @@ indent_size = 2
 indent_style = space
 indent_size = 2
 
+[justfile]
+indent_style = space
+indent_size = 4
+
 # Markdown Files
 #
 # Two spaces at the end of a line in Markdown mean "new line",