diff --git a/CHANGELOG.md b/CHANGELOG.md
index c79e7bec..dc52a786 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,8 +19,13 @@
 
 **Closed issues:**
 
+- Create CONTRIBUTING.md [\#91](https://github.com/btschwertfeger/python-kraken-sdk/issues/91)
 - Extend the typing - using mypy [\#84](https://github.com/btschwertfeger/python-kraken-sdk/issues/84)
 
+**Merged pull requests:**
+
+- Create a contribution guideline [\#92](https://github.com/btschwertfeger/python-kraken-sdk/pull/92) ([btschwertfeger](https://github.com/btschwertfeger))
+
 ## [v1.2.0](https://github.com/btschwertfeger/python-kraken-sdk/tree/v1.2.0) (2023-05-09)
 
 [Full Changelog](https://github.com/btschwertfeger/python-kraken-sdk/compare/v1.1.0...v1.2.0)
diff --git a/README.md b/README.md
index caa4d070..74bb636c 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,8 @@
 [![Downloads](https://static.pepy.tech/personalized-badge/python-kraken-sdk?period=total&units=abbreviation&left_color=grey&right_color=orange&left_text=downloads)](https://pepy.tech/project/python-kraken-sdk)
 
 [![Typing](https://img.shields.io/badge/typing-mypy-informational)](https://mypy-lang.org/)
-[![CodeQL](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/codeql.yml/badge.svg?branch=master)](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/codeql.yml)
-[![CI/CD](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/cicd.yml/badge.svg?branch=master)](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/cicd.yml)
+[![CodeQL](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/codeql.yaml/badge.svg?branch=master)](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/codeql.yaml)
+[![CI/CD](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/cicd.yaml/badge.svg?branch=master)](https://github.com/btschwertfeger/python-kraken-sdk/actions/workflows/cicd.yaml)
 [![codecov](https://codecov.io/gh/btschwertfeger/python-kraken-sdk/branch/master/badge.svg)](https://app.codecov.io/gh/btschwertfeger/python-kraken-sdk)
 
 ![release](https://shields.io/github/release-date/btschwertfeger/python-kraken-sdk)