chore: add banner image

Author: chengpeiquan

README.md

@@ -1,4 +1,10 @@
-# git-commit-analytics
+<p align='center'>
+  <img src="https://cdn.jsdelivr.net/gh/chengpeiquan/assets-storage/img/2022/01/20220103015147.png" alt="git-commit-analytics" />
+</p>
+<br>
+<br>
+
+## Features
 
 A tool to analyze your git repository's commit log. It can help you generate daily/weekly or longer work reports.
 
@@ -105,4 +111,4 @@ You can click [Commit message and Change log writing guide](https://www.ruanyife
 
 ## License
 
-[MIT License](./LICENSE) © 2019 [chengpeiquan](https://github.com/chengpeiquan)
+[MIT License](./LICENSE) © 2022 [chengpeiquan](https://github.com/chengpeiquan)