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diff --git a/README.md b/README.md
index 92c3c06..7581820 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 A vim plugin wrapper for prettier, pre-configured with custom default prettier settings.
 
+**Note:** requires `prettier` version 1.7.0+
+
+***
+
 By default it will auto format **javascript**, **typescript**, **less**, **scss**, **css**, **json**, and **graphql** files that have "@format" annotation in the header of the file.
 
 ![vim-prettier](/media/vim-prettier.gif?raw=true "vim-prettier")
@@ -133,6 +137,9 @@ g:prettier#config#trailing_comma = 'all'
 
 " flow|babylon|typescript|postcss|json|graphql
 g:prettier#config#parser = 'flow'
+
+" cli-override|file-override|prefer-file
+g:prettier#config#config_precedence = 'prefer-file'
 ```
 
 ### REQUIREMENT(S)