Update readme

README.md

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 # A MongoDB-based store for Quartz
 
-## Be Aware of Abandonware
-
-**This project IS NO LONGER MAINTAINED**. If you plan on using it, be ready to address any issues
-on your own and produce your own releases. Issues that ask others to do something
-will be ignored. Pull requests may be merged on a very random schedule.
+## Disclaimer
 
+This project is fork of repository https://github.com/michaelklishin/quartz-mongodb to fix some issues with quartz usage with MongoDB as a persistent layer.
+This repository is work in progress and should not be used outside Netgrif or in production environment.
 
 ## What is This?