add two history graph

Author: Jiezhi

README.md

@@ -6,13 +6,16 @@ Record my leetcode answers with python3.
 [![codebeat badge](https://codebeat.co/badges/554f0e1f-44aa-4eef-92e2-41ab42eeec59)](https://codebeat.co/projects/github-com-jiezhi-myleetcode-master)
 [![CodeFactor](https://www.codefactor.io/repository/github/jiezhi/myleetcode/badge)](https://www.codefactor.io/repository/github/jiezhi/myleetcode) [![Build Status](https://travis-ci.org/Jiezhi/myleetcode.svg?branch=master)](https://travis-ci.org/Jiezhi/myleetcode) ![GitHub commit activity](https://img.shields.io/github/commit-activity/m/Jiezhi/myleetcode)  ![GitHub top language](https://img.shields.io/github/languages/top/Jiezhi/myleetcode) ![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/Jiezhi/myleetcode)
 
-
 [![](https://leetcode-badge.haozibi.dev/v1/solved/jiezhi.svg)](https://leetcode.com/Jiezhi/)
 [![](https://leetcode-badge.haozibi.dev/v1/solved-rate/jiezhi.svg)](https://leetcode.com/Jiezhi/)
 [![](https://leetcode-badge.haozibi.dev/v1/accepted-rate/jiezhi.svg)](https://leetcode.com/Jiezhi/)
 
 [![](https://stats.justsong.cn/api/leetcode/?username=Jiezhi)](https://leetcode.com/Jiezhi/)
 
+[![](https://leetcode-badge.haozibi.dev/v1/chart/solved/jiezhi.svg)](https://leetcode.com/Jiezhi/)
+
+[![](https://leetcode-badge.haozibi.dev/v1/chart/ranking/jiezhi.svg)](https://leetcode.com/Jiezhi/)
+
 ## Test code
 
 `pytest *.py`