update branch name

CHANGELOG.md

@@ -95,7 +95,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial release
 
-[Unreleased]: https://github.com/osiegmar/FastCSV/compare/v2.2.2...master
+[Unreleased]: https://github.com/osiegmar/FastCSV/compare/v2.2.2...main
 [2.2.2]: https://github.com/osiegmar/FastCSV/compare/v2.2.1...v2.2.2
 [2.2.1]: https://github.com/osiegmar/FastCSV/compare/v2.2.0...v2.2.1
 [2.2.0]: https://github.com/osiegmar/FastCSV/compare/v2.1.0...v2.2.0

README.md

@@ -7,9 +7,9 @@
 </p>
 
 <p align="center">
-  <a href="https://github.com/osiegmar/FastCSV/actions/workflows/build.yml"><img src="https://github.com/osiegmar/FastCSV/actions/workflows/build.yml/badge.svg?branch=master" alt="build"></a>
+  <a href="https://github.com/osiegmar/FastCSV/actions/workflows/build.yml"><img src="https://github.com/osiegmar/FastCSV/actions/workflows/build.yml/badge.svg?branch=main" alt="build"></a>
   <a href="https://app.codacy.com/gh/osiegmar/FastCSV/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade"><img src="https://app.codacy.com/project/badge/Grade/7270301676d6463bad9dd1fe23429942" alt="Codacy Badge"></a>
-  <a href="https://codecov.io/gh/osiegmar/FastCSV"><img src="https://codecov.io/gh/osiegmar/FastCSV/branch/master/graph/badge.svg?token=WIWkv7HUyk" alt="codecov"></a>
+  <a href="https://codecov.io/gh/osiegmar/FastCSV"><img src="https://codecov.io/gh/osiegmar/FastCSV/branch/main/graph/badge.svg?token=WIWkv7HUyk" alt="codecov"></a>
   <a href="https://javadoc.io/doc/de.siegmar/fastcsv"><img src="https://javadoc.io/badge2/de.siegmar/fastcsv/javadoc.svg" alt="javadoc"></a>
   <a href="https://central.sonatype.com/artifact/de.siegmar/fastcsv"><img src="https://img.shields.io/maven-central/v/de.siegmar/fastcsv" alt="Maven Central"></a>
 </p>