📝 Add CONTRIBUTING.md

Add CONTRIBUTING.md and update related files.

.github/pull_request_template.md

@@ -26,3 +26,4 @@
 - [ ] My code follows the code style of this project (PEP-8).
 - [ ] My change requires a change to the documentation.
 - [ ] I have updated the documentation accordingly.
+- [ ] I have readed CONTRIBUTING.md.

.gitignore

@@ -6,6 +6,7 @@
 __pycache__
 
 # ignore test file
+.pytest_cache
 pro.py
 test.json
 

CONTRIBUTING.md

@@ -0,0 +1,38 @@
+# Contributing to Pybooru
+:sparkles: Welcome, and thank you for your interest in contributing! :sparkles:
+
+## Resources
+* :books: [**Project Documentation**](https://pybooru.readthedocs.io/en/stable/?badge=stable)
+* :package: [Pybooru on Pypi](https://pypi.org/project/Pybooru/): Pybooru packages ready to install.
+* :woman_student: :man_student: [Code Examples](https://github.com/LuqueDaniel/pybooru/tree/master/examples): examples of how to use Pybooru.
+* :construction_worker: [Travis CI](https://travis-ci.org/LuqueDaniel/pybooru): continuous integration for Linux & Mac.
+* :construction_worker: [AppVeyor](https://ci.appveyor.com/project/LuqueDaniel/pybooru): continuous integration for Windows.
+
+## Code of Conduct
+**Respect each other and be happy! :heart:**
+
+## How Can I Contribute?
+### Reporting Bugs
+Before reporting a bug, :mag: **[check](https://github.com/LuqueDaniel/pybooru/issues)** if it has already been reported. Bugs are tracked as **[GitHub issues](https://github.com/LuqueDaniel/pybooru/issues)**, so create an issue using **Bug report** template.
+
+* Use a descriptive title
+* What behavior was expected?
+* What is the current behavior?
+* Steps to Reproduce (including code)
+* Environment details
+
+### Feature Request
+Before request a new feature, :mag: **[check](https://github.com/LuqueDaniel/pybooru/issues)** if it has already been requested. To request a new feature create a **[GitHub issue](https://github.com/LuqueDaniel/pybooru/issues)** using **Feature request** template.
+
+* Write a descriptive title
+* Detailed Description of the feature
+* Why is this change important to you? How would you use it? How can it benefit other users?
+
+### Pull Requests
+Steps to make a pull request:
+
+1. Complete the pull [request template](https://github.com/LuqueDaniel/pybooru/blob/master/.github/pull_request_template.md).
+2. Follow [Styleguide](#styleguide).
+
+## Styleguide
+We follow **[PEP-8](https://www.python.org/dev/peps/pep-0008/)** (not in a strict way) and **[Google Python Docstrings](https://github.com/google/styleguide/blob/gh-pages/pyguide.md#382-modules)**. Use `Pylint`.

README.md

@@ -90,5 +90,8 @@ You can consult the documentation on **[Read the Docs](https://pybooru.readthedo
 | [Linux & OSX (Travis CI)](https://travis-ci.org/LuqueDaniel/pybooru) | [![Travis CI](https://travis-ci.org/LuqueDaniel/pybooru.svg?branch=master)](https://travis-ci.org/LuqueDaniel/pybooru) | [![Travis CI](https://travis-ci.org/LuqueDaniel/pybooru.svg?branch=develop)](https://travis-ci.org/LuqueDaniel/pybooru) |
 | [Windows (AppVeyor)](https://ci.appveyor.com/project/LuqueDaniel/pybooru) | [![AppVeyor](https://img.shields.io/appveyor/ci/luquedaniel/pybooru.svg)](https://ci.appveyor.com/project/LuqueDaniel/pybooru) | [![AppVeyor](https://img.shields.io/appveyor/ci/luquedaniel/pybooru/develop.svg)](https://ci.appveyor.com/project/LuqueDaniel/pybooru) |
 
+## Contributing
+Feel free to contribute, take a look at **[CONTRIBUTING](https://github.com/LuqueDaniel/pybooru/blob/master/CONTRIBUTING.md)**.
+
 ## License
 - **[See MIT License](https://github.com/LuqueDaniel/pybooru/blob/master/LICENSE)**