Update Contributing file

.github/CONTRIBUTING.md

@@ -1,7 +1,5 @@
 [issue]: https://github.com/PlaceholderAPI/PlaceholderAPI/issues/new?template=change_request_placeholderapi.md
 [Discord]: https://helpch.at/discord
-[homepage]: http://contributor-covenant.org
-[version]: http://contributor-covenant.org/version/1/4/
 
 # Contributing
 
@@ -11,54 +9,18 @@ Please note we have a code of conduct, please follow it in all your interactions
 
 ## Pull Request Process
 
-1. Update the README.md with details of changes if it is affected by those changes.
+When creating a Pull request should you follow the below rules:
-2. Try to prevent any breaking changes affecting the end-user (Developers using the API).  
-Mention any breaking changes that could affect the end-user.
-3. Document any public methods that the end-user might use.
 
-## Code of Conduct
+- When pushing towards the code of PlaceholderAPI make the Pull request target the `develop` branch of this repository.
+- When pushing towards the wiki (Towards the dedicated Wiki folder) make the Pull request target the `docs/wiki` branch of this repository.
+- Any Pull requests targeting the `master` branch for above reasons will be denied and closed.
 
-### Our Pledge
+### Code structure
+When changing the code of PlaceholderAPI should you follow these basic guidelines for how to do stuff.
 
-In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+#### Codestyle
+We follow the Google Codestyle for the project. Please make sure that you follow it when contributing code to this project.
 
-### Our Standards
+#### Documentation
-
+When you implement/change methods that are supposed to be usable by the end-user (developer) is it required to also add or update the corresponding Javadocs of the methods.  
-Examples of behavior that contributes to creating a positive environment
+Deprecating a method requires you to add a `@deprecated` tag to the comments and mention the next version this may get removed.
-include:
-
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
-
-Examples of unacceptable behavior by participants include:
-
-* The use of sexualized language or imagery and unwelcome sexual attention or advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or electronic address, without explicit permission
-* Other conduct which could reasonably be considered inappropriate in a professional setting
-
-### Our Responsibilities
-
-Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
-
-Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
-
-### Scope
-
-This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
-
-### Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at our [Discord]. All
-complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
-
-Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
-
-### Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at [http://contributor-covenant.org/version/1/4][version]