docs: Update shield of github release

CHANGELOG.md

@@ -4,7 +4,6 @@ All notable changes to this project will be documented in this file. See [standa
 
 ## [1.0.0](https://github.com/liuyib/hexo-theme-stun/compare/v1.0.0-beta.0...v1.0.0) (2019-06-23)
 
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 ### Bug Fixes
 
 * Display the reading progress bar only on the articles page ([cdaac3f](https://github.com/liuyib/hexo-theme-stun/commit/cdaac3f))
@@ -14,7 +13,6 @@ All notable changes to this project will be documented in this file. See [standa
 * Solve the problem that the menu always shows in mobile ([21cde8e](https://github.com/liuyib/hexo-theme-stun/commit/21cde8e))
 * Solved the display of unordered list ([1ba789e](https://github.com/liuyib/hexo-theme-stun/commit/1ba789e))
 
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 ### Features
 
 * Add back to top button ([9248c62](https://github.com/liuyib/hexo-theme-stun/commit/9248c62))
@@ -30,7 +28,6 @@ All notable changes to this project will be documented in this file. See [standa
 * Provides a way to specify the size of the image ([aa4195f](https://github.com/liuyib/hexo-theme-stun/commit/aa4195f))
 
 
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 ## [1.0.0-alpha.0](https://github.com/liuyib/hexo-theme-stun/compare/v1.0.0-beta.0...v1.0.0-alpha.0) (2019-06-17)
 
 ### Bug Fixes

README.md

@@ -13,7 +13,7 @@
     <img alt="hexo" src="https://img.shields.io/badge/hexo-%3E%3D3.0-blue.svg?style=flat-square">
   </a>
   <a href="https://github.com/liuyib/hexo-theme-stun/releases" target="_blank" rel="noopener noreferrer">
-    <img alt="GitHub release" src="https://img.shields.io/github/release-pre/liuyib/hexo-theme-stun.svg?style=flat-square">
+    <img alt="GitHub release" src="https://img.shields.io/github/release/liuyib/hexo-theme-stun.svg?style=flat-square">
   </a>
 </p>