docs: improve badges and image format in README; remove aliyun star…

…t link

README.md

@@ -2,7 +2,7 @@
 
 [![Fast CI](https://img.shields.io/github/actions/workflow/status/alibaba/cola/ci.yaml?branch=master&logo=github&logoColor=white&label=fast-ci)](https://github.com/alibaba/cola/actions/workflows/ci.yaml)
 [![Multiply Java versions CI](https://img.shields.io/github/actions/workflow/status/alibaba/cola/ci_by_multiply_java_versions.yaml?branch=master&logo=github&logoColor=white&label=strong-ci)](https://github.com/alibaba/cola/actions/workflows/ci_by_multiply_java_versions.yaml)
-[![License](https://img.shields.io/badge/license-LGPL%202.1-4EB1BA.svg?color=4D7A97&logo=apache)](LICENSE)
+[![License](https://img.shields.io/badge/license-LGPL--2.1-4EB1BA.svg?color=4D7A97&logo=apache)](LICENSE)
 [![Java support](https://img.shields.io/badge/Java-8+-339933?logo=OpenJDK&logoColor=white)](https://openjdk.java.net/)
 [![Maven Central](https://img.shields.io/maven-central/v/com.alibaba.cola/cola-component-dto.svg?logo=apache-maven)](https://search.maven.org/search?q=g:com.alibaba.cola)
 [![GitHub Releases](https://img.shields.io/github/release/alibaba/COLA.svg)](https://github.com/alibaba/COLA/releases)
@@ -17,7 +17,7 @@
 目前COLA已经发展到[COLA v4](https://blog.csdn.net/significantfrank/article/details/110934799)。</strong>
 
 > - 想了解更多COLA信息，请关注微信公众号：  
-> ![qrcode_60.jpg](https://img-blog.csdnimg.cn/2020110314110321.png#pic_center)
+> <a href="#dummy"><img src="https://img-blog.csdnimg.cn/2020110314110321.png" width="25%" alt="qrcode" /></a>
 > - 想了解更多COLA背后的故事，请支持我的新书[《程序员的底层思维》](https://item.jd.com/13652002.html)
 
 COLA分为两个部分，COLA架构和COLA组件。
@@ -95,8 +95,6 @@ mvn archetype:generate \
 
 ![demo](https://img-blog.csdnimg.cn/20201209192258840.png)
 
-注：也可以使用阿里云的应用生成器：https://start.aliyun.com/bootstrap.html 生成cola应用。
-
 ## 2. 运行应用
 
 - 在`项目`目录下运行`mvn install`（如果不想运行测试，可以加上`-DskipTests`参数）。