This commit introduces a new blog feature by implementing a JSON schema for blog posts and providing five example content files.
Key changes:
- Created a new directory structure for schemas and content (`schemas/`, `content/blog/`).
- Implemented a JSON schema for blog posts, split into `blog.json` and `_defs.json` for reusability.
- Added five example blog post files with full, realistic content.
- Included a Python script (`validate.py`) to validate the example content against the schema.