Add OpenContracts as an open source project

OpenContracts is an enterprise-grade document analytics platform that combines automated PDF parsing, vector embeddings, and LLM integration with manual annotation capabilities to enable sophisticated document management and extraction of insights at scale.

README.md

@@ -520,6 +520,7 @@ _Django 3.2_
 - [HyperKitty](https://gitlab.com/mailman/hyperkitty) - A web interface to access GNU Mailman v3 archives.
 - [Healthchecks](https://github.com/healthchecks/healthchecks) - A Cron Monitoring Tool written in Python & Django.
 - [Flagsmith](https://github.com/Flagsmith/flagsmith) - Open-source Feature Flagging, Remote Config, and AB testing.
+- [OpenContracts](https://github.com/JSv4/OpenContracts) - enterprise-grade document analytics platform that combines automated PDF parsing, vector embeddings, and LLM integration.
 
 ## Django REST Framework