docs: update contributing guidelines to include references and monorepo structure

Author: Rel1cx

.github/CONTRIBUTING.md

@@ -20,3 +20,8 @@ Thank you for your interest in contributing to ESLint React! This guide will hel
 - **New Features** - Provide strong rationale, preferably with prior discussion
 - **Bug Fixes** - Include `(fix: #xxxx)` in your PR title and detailed description
 - **Documentation Changes** - Include `(docs: #xxxx)` in your PR title and detailed description
+
+## References
+
+- [ESLint React Documentation](https://eslint-react.github.io/)
+- [Monorepo Structure](https://eslint-react.xyz/docs/contributing#monorepo-structure)

apps/website/content/docs/contributing.mdx

@@ -10,12 +10,10 @@ To get started with the project, follow these steps:
 
 Please follow our [contributing guidelines](https://github.com/Rel1cx/eslint-react/blob/main/.github/CONTRIBUTING.md).
 
-## Reference
+## Monorepo Structure
 
 This section provides a reference to the repository structure and the relationships between different components.
 
-### Monorepo Structure
-
 ```mermaid
 flowchart TB
     %% Monorepo