Updated README with useful documentation
Updated README with useful documentation

Changes:
- Added installation instructions and usage notes.
- Cleaned up other details.
jonathanbardo/WP-Chimplet,locomotivemtl/wordpress-chimplet,jonathanbardo/WP-Chimplet,locomotivemtl/wordpress-chimplet,jonathanbardo/WP-Chimplet,locomotivemtl/wordpress-chimplet