fix: add disclaimer (#97)

Signed-off-by: degenaro <lou.degenaro@gmail.com>

Author: degenaro

README.md

@@ -51,3 +51,19 @@ Participation in the OSCAL Compass community is governed by the [Code of Conduct
 ## Acknowledgments
 
 This project leverages [`go_oscal`](https://github.com/defenseunicorns/go-oscal) to provide Go types for the OSCAL schema.
+
+______________________________________________________________________
+
+We are a Cloud Native Computing Foundation sandbox project.
+
+<picture>
+  <source media="(prefers-color-scheme: dark)" srcset="https://www.cncf.io/wp-content/uploads/2022/07/cncf-white-logo.svg">
+  <img src="https://www.cncf.io/wp-content/uploads/2022/07/cncf-color-bg.svg" width=300 />
+</picture>
+
+The Linux Foundation® (TLF) has registered trademarks and uses trademarks. For a list of TLF trademarks, see [Trademark Usage](https://www.linuxfoundation.org/legal/trademark-usage).
+
+*OSCAL Compass is an independent open source project. It is not affiliated with, endorsed by, or sponsored by the National Institute of Standards and Technology (NIST) or any other government agency.*
+
+*OSCAL Compass was originally contributed by IBM.*
+