default branch related (apache#4148)

CODE_OF_CONDUCT.md

@@ -12,7 +12,7 @@ The following code of conduct is based on full compliance with [ASF CODE OF COND
 ## Contributor Covenant Submitting of Conduct
 
  - Make sure all the test cases are passed, Make sure `mvn clean install` can be compiled and tested successfully.
- - Make sure the test coverage rate is not lower than the dev branch.
+ - Make sure the test coverage rate is not lower than the master branch.
  - Make sure to check codes with Checkstyle. codes that violate check rules should have special reasons. Find checkstyle template from `sharding-sphere/src/resources/sharding_checks.xml`, please use checkstyle `8.8` to run the rules.
 
 ## Contributor Covenant Code of Conduct

CONTRIBUTING.md

@@ -29,6 +29,6 @@ You can report a bug, submit a new feature enhancement recommendation, or commit
  - Find a mentor in [Core developers list](http://incubator.apache.org/projects/shardingsphere.html), he will give you feedback for design and implements.
  - Fork to your github repo and begin to work.
  - Please follow Sharding's [Development conventions](https://shardingsphere.apache.org/community/en/contribute/code-conduct/), and complete check before pull request submit.
- - Submit a pull request to dev branch when finished, please do not submit pull request to master.
+ - Submit a pull request to master branch when finished.
  - Mentor will do code review and discuss some details, include design, implement, performance and code style. Code will be merged until mentor accepted.
  - Finally, congratulations that you have become the official contributor for Sharding!

README.md

@@ -9,7 +9,7 @@
 
 [![Total Lines](https://tokei.rs/b1/github/apache/incubator-shardingsphere?category=lines)](https://github.com/apache/incubator-shardingsphere)
 [![Build Status](https://builds.apache.org/job/shardingsphere-ci-dev/badge/icon)](https://builds.apache.org/job/shardingsphere-ci-dev/)
-[![Coverage Status](https://coveralls.io/repos/github/apache/incubator-shardingsphere/badge.svg?branch=dev)](https://coveralls.io/github/apache/incubator-shardingsphere?branch=dev)
+[![Coverage Status](https://coveralls.io/repos/github/apache/incubator-shardingsphere/badge.svg?branch=master)](https://coveralls.io/github/apache/incubator-shardingsphere?branch=master)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/278600ed40ad48e988ab485b439abbcd)](https://www.codacy.com/app/terrymanu/sharding-sphere?utm_source=github.com&utm_medium=referral&utm_content=sharding-sphere/sharding-sphere&utm_campaign=Badge_Grade)
 [![snyk](https://snyk.io/test/github/apache/incubator-shardingsphere/badge.svg?targetFile=pom.xml)](https://snyk.io/test/github/apache/incubator-shardingsphere?targetFile=pom.xml)
 [![OpenTracing-1.0 Badge](https://img.shields.io/badge/OpenTracing--1.0-enabled-blue.svg)](http://opentracing.io)

README_ZH.md

@@ -9,7 +9,7 @@
 
 [![Total Lines](https://tokei.rs/b1/github/apache/incubator-shardingsphere?category=lines)](https://github.com/apache/incubator-shardingsphere)
 [![Build Status](https://builds.apache.org/job/shardingsphere-ci-dev/badge/icon)](https://builds.apache.org/job/shardingsphere-ci-dev/)
-[![Coverage Status](https://coveralls.io/repos/github/apache/incubator-shardingsphere/badge.svg?branch=dev)](https://coveralls.io/github/apache/incubator-shardingsphere?branch=dev)
+[![Coverage Status](https://coveralls.io/repos/github/apache/incubator-shardingsphere/badge.svg?branch=master)](https://coveralls.io/github/apache/incubator-shardingsphere?branch=master)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/278600ed40ad48e988ab485b439abbcd)](https://www.codacy.com/app/terrymanu/sharding-sphere?utm_source=github.com&utm_medium=referral&utm_content=sharding-sphere/sharding-sphere&utm_campaign=Badge_Grade)
 [![snyk](https://snyk.io/test/github/apache/incubator-shardingsphere/badge.svg?targetFile=pom.xml)](https://snyk.io/test/github/apache/incubator-shardingsphere?targetFile=pom.xml)
 [![OpenTracing-1.0 Badge](https://img.shields.io/badge/OpenTracing--1.0-enabled-blue.svg)](http://opentracing.io)