Merge pull request #402 from greg0ire/update-readme

Bump version number in README

README.md

@@ -1,7 +1,7 @@
 # Doctrine Persistence
 
-[![GitHub Actions][GA 3.4 image]][GA 3.4]
-[![Code Coverage][Coverage 3.4 image]][CodeCov 3.4]
+[![GitHub Actions][GA 4.0 image]][GA 4.0]
+[![Code Coverage][Coverage 4.0 image]][CodeCov 4.0]
 
 The Doctrine Persistence project is a library that provides common abstractions for object mapper persistence.
 
@@ -11,7 +11,7 @@ The Doctrine Persistence project is a library that provides common abstractions
 * [Documentation](https://www.doctrine-project.org/projects/doctrine-persistence/en/latest/index.html)
 * [Downloads](https://github.com/doctrine/persistence/releases)
 
-  [Coverage 3.4 image]: https://codecov.io/gh/doctrine/persistence/branch/3.4.x/graph/badge.svg
-  [CodeCov 3.4]: https://codecov.io/gh/doctrine/persistence/branch/3.4.x
-  [GA 3.4 image]: https://github.com/doctrine/persistence/actions/workflows/continuous-integration.yml/badge.svg?branch=3.4.x
-  [GA 3.4]: https://github.com/doctrine/persistence/actions/workflows/continuous-integration.yml?branch=3.4.x
+  [Coverage 4.0 image]: https://codecov.io/gh/doctrine/persistence/branch/4.0.x/graph/badge.svg
+  [CodeCov 4.0]: https://codecov.io/gh/doctrine/persistence/branch/4.0.x
+  [GA 4.0 image]: https://github.com/doctrine/persistence/actions/workflows/continuous-integration.yml/badge.svg?branch=4.0.x
+  [GA 4.0]: https://github.com/doctrine/persistence/actions/workflows/continuous-integration.yml?branch=4.0.x