diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 1903719..55b3873 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -15,10 +15,11 @@ Pull requests are the best way to propose changes to the codebase (we use [Githu
 
 1. Fork the repo and create a new branch from `master`.
 2. If you've added code that should be tested, add tests.
-3. If you've changed APIs, update the documentation.
+3. Update the documentation.
 4. Ensure the test suite passes.
 5. Make sure your code lints.
 6. Issue that pull request!
+6. Clean unused files before commiting using `invoke clean`
 
 ## Any contributions you make will be under the Apache 2.0 Software License
 In short, when you submit code changes, your submissions are understood to be under the same [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0) that covers the project. Feel free to contact the maintainers if that's a concern.
@@ -41,6 +42,8 @@ People *love* thorough bug reports. I'm not even kidding.
 
 ## Use a Consistent Coding Style
 * 4 spaces for indentation rather than tabs
+* We have many interesting commands to help create a better code, try `invoke --list`
+* Use `invoke lint` and `invoke format` before commit
 
 ## License
 By contributing, you agree that your contributions will be licensed under its Apache License 2.0.
diff --git a/pyransac3d/cylinder.py b/pyransac3d/cylinder.py
index dd9bbaa..8452b0b 100644
--- a/pyransac3d/cylinder.py
+++ b/pyransac3d/cylinder.py
@@ -8,9 +8,9 @@
 class Cylinder:
     """
     !!! warning
-        The cylinder RANSAC in this library works! but does not present good results on real data on the current version.
+        The cylinder RANSAC does NOT present good results on real data on the current version.
         We are working to make a better algorithim using normals. If you want to contribute, please create a MR on github.
-        You'll be our hero!
+        Or give us ideas on [this issue](https://github.com/leomariga/pyRANSAC-3D/issues/13)
 
     Implementation for cylinder RANSAC.
 
diff --git a/setup.py b/setup.py
index a2660a0..ad56d18 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="pyransac3d",  # Replace with your own username
-    version="0.5.0",
+    version="0.6.0",
     author="Leonardo Mariga",
     author_email="leomariga@gmail.com",
     description="A python tool for fitting primitives 3D shapes in point clouds using RANSAC algorithm ",