Add SASS_BINARY_DIR to Readme

kausters · xzyfer · commit 3331891a89fc · 2018-03-10T19:44:12.000+11:00
diff --git a/README.md b/README.md
@@ -567,6 +567,7 @@ Variable name    | .npmrc parameter | Process argument   | Value
 SASS_BINARY_NAME | sass_binary_name | --sass-binary-name | path
 SASS_BINARY_SITE | sass_binary_site | --sass-binary-site | URL
 SASS_BINARY_PATH | sass_binary_path | --sass-binary-path | path
+SASS_BINARY_DIR  | sass_binary_dir  | --sass-binary-dir  | path
 
 These parameters can be used as environment variable:
 
