diff --git a/en/html5/index.html b/en/html5/index.html
index c7db708c..8bca280b 100644
--- a/en/html5/index.html
+++ b/en/html5/index.html
@@ -89,6 +89,8 @@ Click to install the following html5 apps:
Note: the following two mdict.html files are different.
+i:5ifile:///....../xxx.mdx,xxx.mdd?app=https://uwebzh.netlify.app/en/searchurl/mdict/mdict.html#word=%s
i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=%s
The dictionary files (mdx, mdd) must locate in the "app" subfolder under the configuration folder. In above example, the files "xxx.mdx" and "xxx.mdd" locate in the folder ".../app/mdict".
To make life easier, users can link the "app" subfolder to any public accessible folder.