diff --git a/README.md b/README.md
index 356ad5eca..1d0aeffc4 100644
--- a/README.md
+++ b/README.md
@@ -72,4 +72,4 @@ Pull the source code and run script "assembly/bin/build-ide.sh" and run bootstra
 
 Please join the chat group to suggest feedbacks or ideas:
 
-<img src="./docs/images/wechat_contact.jpeg" height="30%" width="30%" align="center"/> 
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+<img src="./docs/images/wechat_contact.jpeg" height="40%" width="40%" align="center"/> 
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diff --git a/README_CN.md b/README_CN.md
index 2cce34da2..685826b03 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -70,4 +70,4 @@
 
 欢迎加入微信群反馈建议：
 
-<img src="./docs/images/wechat_contact.jpeg" height="30%" width="30%" align="center"/> 
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+<img src="./docs/images/wechat_contact.jpeg" height="40%" width="40%" align="center"/> 
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diff --git a/docs/images/supersonic_demo.gif b/docs/images/supersonic_demo.gif
index c23654e03..23b44c752 100644
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diff --git a/docs/images/wechat_contact.jpeg b/docs/images/wechat_contact.jpeg
index 1d913ecc0..15ea268ba 100644
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