diff --git a/README.md b/README.md
index ddff7f41d..6191a51b3 100644
--- a/README.md
+++ b/README.md
@@ -15,11 +15,11 @@
 
 ## Demo
 
-[Checkout the demo](https://blog.zhw-island.com/ArtPlayer/lab)
+[Checkout the demo](https://blog.zhw-island.com/ArtPlayer/lab) from Github Pages
 
 ## Document
 
-[Checkout the Document](https://blog.zhw-island.com/ArtPlayer/docs)
+[Checkout the Document](https://blog.zhw-island.com/ArtPlayer/docs) from Github Pages
 
 ## Install
 
diff --git a/docs/docs/README.md b/docs/docs/README.md
index 2eedd474a..308a4d962 100644
--- a/docs/docs/README.md
+++ b/docs/docs/README.md
@@ -458,7 +458,7 @@ Custom subtitle
 ### url
 
 - Type: `String`
-- Default: ``
+- Default: `''`
 
 Subtitle url, support vtt and srt format
 
@@ -495,7 +495,7 @@ Custom thumbnails in the progress bar with lazy load
 ### style
 
 - Type: `String`
-- Default: ``
+- Default: `''`
 
 Thumbnails image url
 
@@ -773,7 +773,7 @@ The unique index, used for the priority level
 ### html
 
 - Type: `String`、`Element`
-- Default: ``
+- Default: `''`
 
 The dom element