chore(contributing): format

CONTRIBUTING.md

@@ -4,23 +4,23 @@ Thanks for your interest in contributing to React Flow 🙌
 Every form of contribution is appreciated. From issue reports to pull requests and documentation 👌  
 Please check out the [existing issues](https://github.com/wbkd/react-flow/issues) and [discussions](https://github.com/wbkd/react-flow/discussions) before you open a new one. 
 
-### 🐛 Bug Reports
+#### 🐛 Bug Reports
 
 For reporting bugs, please create a [new issue](https://github.com/wbkd/react-flow/issues/new/choose).
 
-### ☝️ General Usage
+#### ☝️ General Usage
 
 When you have questions about the general usage of React Flow you can use the [Q & A section](https://github.com/wbkd/react-flow/discussions/categories/q-a) or the [Discord channel](https://discord.gg/Bqt6xrs).
 
-### ✨ Feature Requests 
+#### ✨ Feature Requests 
 
 If you are missing a certain feature, please use the [New Features](https://github.com/wbkd/react-flow/discussions/categories/new-features) discussion section.
 
-### 📝 Docs 
+#### 📝 Docs 
 
 The docs have its own [react-flow-docs repo](https://github.com/wbkd/react-flow-docs). Please open an issue or pull request there if you are missing something.
 
-### 💫 Pull Requests
+#### 💫 Pull Requests
 
 If you want to contribute improvements or new features we are happy to review your PR :)  
 Please use a meaningful commit message and add a little description of your changes.