Update README.md

README.md

@@ -8,4 +8,6 @@ The data set above underpins a data essay which is found here:
 <a href="https://hfordsa.github.io/who-do-we-think-we-are.html">"Producing distinction: Wikipedia and the Order of Australia"</a>
 
 Suggested citation: 
-Ford, H., Pietsch, T., & Tall, K., Hudson, T., Lum, A., Mitchell, P. (2021). Producing Distinction: Wikipedia and the Order of Australia. University of Technology Sydney.
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+Ford, H., Pietsch, T., & Tall, K., Hudson, T., Lum, A., Mitchell, P. (2021). Producing Distinction: Wikipedia and the Order of Australia. University of Technology Sydney.
+
+Attribution-ShareAlike 3.0 Australia (CC BY-SA 3.0 AU)