Auto-generated release v3.1.3

Changes:
Add comprehensive guide for implementing new query operations in GraphJIN

This commit introduces a detailed documentation file outlining the process for adding new query operations, specifically focusing on JSON path operations. The guide covers research, test-driven development, extending the qcode and psql packages, and ensuring database compatibility. It emphasizes the importance of creating test cases first and provides examples for PostgreSQL, MySQL, SQL Server, and CockroachDB.

Key highlights include:

• Step-by-step implementation process for new operations
• Best practices for testing and validation
• Common patterns for error handling and database-specific code

This documentation serves as a reference for developers looking to enhance GraphJIN's query capabilities.

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Commit: e4fbcfd