Added attention about ../.. paths.

#31

_config.yml

@@ -12,11 +12,15 @@ override: false
 cache:
   enable: true
 
-# Redefine custom file pathes. Introduced in NexT v6.0.2.
-# If commented, will be used default custom file pathes.
+# Redefine custom file paths. Introduced in NexT v6.0.2.
+# If commented, will be used default custom file paths.
+
 # For example, you want to put your custom styles file
 # outside theme directory in root `source/_data`, set
 # `styles: ../../../../../source/_data/styles.styl`
+
+# ATTENTION! Do not need to touch any `../..` paths,
+# only from relative paths behind `source` can be modified.
 #custom_file_path:
   #head: ../../../../../source/_data/head.swig
   #header: ../../../../source/_data/header.swig