docs: update `README`

README.en-US.md

@@ -43,6 +43,7 @@ The simplified version is based on the shelf extracted from [vue-pure-admin](htt
 
 <p align="center">
   <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/1.jpg">
+  <br />
   <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/2.jpg">
 </p>
 
@@ -50,12 +51,14 @@ The simplified version is based on the shelf extracted from [vue-pure-admin](htt
 
 <p align="center">
   <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/3.jpg">
+  <br />
+  <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/4.jpg">
 </p>
 
 `Mobile`
 
 <p align="center">
-  <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/4.jpg">
+  <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/5.jpg">
 </p>
 
 ### Use Gitpod

README.md

@@ -43,6 +43,7 @@
 
 <p align="center">
   <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/1.jpg">
+  <br />
   <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/2.jpg">
 </p>
 
@@ -50,12 +51,14 @@
 
 <p align="center">
   <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/3.jpg">
+  <br />
+  <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/4.jpg">
 </p>
 
 移动端
 
 <p align="center">
-  <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/4.jpg">
+  <img alt="PureAdmin" src="https://xiaoxian521.github.io/hyperlink/img/vue-pure-admin/5.jpg">
 </p>
 
 ### 使用 `Gitpod`