Add Apache contributions note
PiperOrigin-RevId: 435097017
diff --git a/v2/assets/Supplement/Apache-2.0/contributions.txt b/v2/assets/Supplement/Apache-2.0/contributions.txt
new file mode 100644
index 0000000..a2f8d97
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+++ b/v2/assets/Supplement/Apache-2.0/contributions.txt
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+This software consists of voluntary contributions made by many individuals on behalf of
+the Apache Software Foundation. For more information on the Apache Software
+Foundation, please see <http:// www.apache.org/>. Portions of this software are based
+upon public domain software originally written at the National Center for
+Supercomputing Applications, University of Illinois, Urbana-Champaign. Copyright ©
+2004 The Apache Software Foundation. All rights reserved.
