diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b5cd207e..bfe66228 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,31 +1,30 @@
-# Development
+# Contributing
+
+If you are new to contributing to open source software [this guide](https://opensource.guide/how-to-contribute) can help get you started.
+
 ### Setup
-If you want to contribute to `pyerrors` please [fork](https://docs.github.com/en/get-started/quickstart/fork-a-repo) `pyerrors` on Github, clone the current `develop` branch
+If you want to contribute to `pyerrors` please [fork](https://docs.github.com/en/get-started/quickstart/fork-a-repo) `pyerrors` on Github, clone the repository
 ```
-git clone http://github.com/my_username/pyerrors.git --branch develop
+git clone http://github.com/my_username/pyerrors.git
 ```
-and create your own branch
+and create your own branch for the feature or bug fix
 ```
 cd pyerrors
 git checkout -b feature/my_feature
 ```
-It can be convenient to install the package in editable mode in the local python environment when developing new features
-```
-pip install -e .
-```
-Please send any pull requests to the `develop` branch.
+After committing your changes please send a pull requests to the `develop` branch. A guide on how to create a pull request can be found [here](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request).
 
 ### Documentation
-Please add docstrings to any new function, class or method you implement. The documentation is automatically generated from these docstrings. The startpage of the documentation is generated from the docstring of `pyerrors/__init__.py`.
+Please add docstrings to any new function, class or method you implement. The documentation is automatically generated from these docstrings. We follow the [numpydoc style](https://numpydoc.readthedocs.io/en/latest/format.html) for docstrings. The startpage of the documentation is generated from the docstring of `pyerrors/__init__.py`.
 
 ### Tests
 When implementing a new feature or fixing a bug please add meaningful tests to the files in the `tests` directory which cover the new code.
 For all pull requests tests are executed for the most recent python releases via
 ```
-pytest -vv --cov=pyerrors
-pytest -vv --nbmake examples/*.ipynb
+pytest
+pytest --nbmake examples/*.ipynb
 ```
-requiring `pytest`, `pytest-cov`, `pytest-benchmark`, `hypothesis' and `nbmake`. To install the test dependencies one can run `pip install pyerrors[test]`
+requiring `pytest`, `pytest-cov`, `pytest-benchmark`, `hypothesis` and `nbmake`. To install the test dependencies one can run `pip install pyerrors[test]`
 
 To get a coverage report in html run
 ```
@@ -35,4 +34,4 @@ The linter `flake8` is executed with the command
 ```
 flake8 --ignore=E501,W503 --exclude=__init__.py pyerrors
 ```
-Please make sure that all tests are passed for a new pull requests.
+Please make sure that all tests pass for a new pull requests.
diff --git a/README.md b/README.md
index 5368ee34..bc9bcef1 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,6 @@
 
 - **Documentation:** https://fjosw.github.io/pyerrors/pyerrors.html
 - **Examples:** https://github.com/fjosw/pyerrors/tree/develop/examples
-- **Contributing:** https://github.com/fjosw/pyerrors/blob/develop/CONTRIBUTING.md
 - **Bug reports:** https://github.com/fjosw/pyerrors/issues
 
 ## Installation
@@ -17,3 +16,6 @@ to install the current `develop` version run
 ```bash
 pip install git+https://github.com/fjosw/pyerrors.git@develop
 ```
+
+## Contributing
+We appreciate all contributions to the code, the documentation and the examples. If you want to get involved please have a look at our [contribution guideline](https://github.com/fjosw/pyerrors/blob/develop/CONTRIBUTING.md).
diff --git a/pyerrors/misc.py b/pyerrors/misc.py
index 962b91c5..07fc8fe1 100644
--- a/pyerrors/misc.py
+++ b/pyerrors/misc.py
@@ -1,7 +1,25 @@
-import pickle
+import platform
 import numpy as np
+import scipy
+import matplotlib
 import matplotlib.pyplot as plt
+import pandas as pd
+import pickle
 from .obs import Obs
+from .version import __version__
+
+
+def print_config():
+    """Print information about version of python, pyerrors and dependencies."""
+    config = {"python": platform.python_version(),
+              "pyerrors": __version__,
+              "numpy": np.__version__,
+              "scipy": scipy.__version__,
+              "matplotlib": matplotlib.__version__,
+              "pandas": pd.__version__}
+
+    for key, value in config.items():
+        print(f"{key : <10}\t {value}")
 
 
 def errorbar(x, y, axes=plt, **kwargs):
diff --git a/pyerrors/version.py b/pyerrors/version.py
index eedcdd45..3e4e49a9 100644
--- a/pyerrors/version.py
+++ b/pyerrors/version.py
@@ -1 +1 @@
-__version__ = "2.7.0+dev"
+__version__ = "2.7.0-dev"