Update readme

README.md

@@ -11,7 +11,23 @@
 [![MacOS x64](https://img.shields.io/github/actions/workflow/status/fizzed/bigmap/macos-x64.yaml?branch=master&label=MacOS%20x64&style=flat-square)](https://github.com/fizzed/bigmap/actions/workflows/macos-x64.yaml)
 [![Windows x64](https://img.shields.io/github/actions/workflow/status/fizzed/bigmap/windows-x64.yaml?branch=master&label=Windows%20x64&style=flat-square)](https://github.com/fizzed/bigmap/actions/workflows/windows-x64.yaml)
 
-[Fizzed, Inc.](http://fizzed.com) (Follow on Twitter: [@fizzed_inc](http://twitter.com/fizzed_inc))
+## Sponsorship & Support
+
+![](https://cdn.fizzed.com/github/fizzed-logo-100.png)
+
+Project by [Fizzed, Inc.](http://fizzed.com) (Follow on Twitter: [@fizzed_inc](http://twitter.com/fizzed_inc))
+
+**Developing and maintaining opensource projects requires significant time.** If you find this project useful or need
+commercial support, we'd love to chat. Drop us an email at [ping@fizzed.com](mailto:ping@fizzed.com)
+
+Project sponsors may include the following benefits:
+
+- Priority support (outside of Github)
+- Feature development & roadmap
+- Priority bug fixes
+- Privately hosted continuous integration tests for their unique edge or use cases
+
+## Overview
 
 Lightweight Map, SortedMap, LinkedMap, Set, and SortedSet implementation(s) with minimal 3rd party dependencies that alleviates memory
 pressure by offloading to disk.  Tested on Java 8, 11, and 17.