开源内容提交

Turtle/readme.md

@@ -1,2 +1,4 @@
 ## 简介
 
+项目负责人来写项目的介绍吧。
+

ValentineDay/readme.md

@@ -1,2 +0,0 @@
-## 简介
-

readme.md

@@ -13,7 +13,7 @@
 - [编程实践（Python 爬虫）](https://github.com/datawhalechina/team-learning-program/tree/master/WebSpider)
 - [编程实践（Python综合）](https://github.com/datawhalechina/team-learning-program/tree/master/ProjectPractice)
 - [编程实践（设计模式）](https://github.com/datawhalechina/team-learning-program/tree/master/DesignPattern)
-- [编程实践（欢欢喜喜情人节）](https://github.com/datawhalechina/team-learning-program/tree/master/ValentineDay)
+- [编程实践（区块链）](https://github.com/datawhalechina/team-learning-program/tree/master/Blockchain)
 - [编程实践（青少年编程Turtle）](https://github.com/datawhalechina/team-learning-program/tree/master/Turtle)