Update README.md

README.md

@@ -10,3 +10,12 @@ Links:
 
 Comments welcome. Send email to: 
 gthompson (at) usf (dot) edu
+
+
+GISMO helps a lot of researchers prepare their papers for conferences and publication. There are around 300 subscribers to the GISMO Users listserv and GISMO is downloaded over 1000 times a year. But GISMO is supported by unpaid volunteers only. So please help us out by citing this work in your paper. Suggested citation:
+
+Thompson G. and Reyes, C., (2017) GISMO - a seismic data analysis toolbox for MATLAB [software package], http://geoscience-community-codes.github.io/GISMO/. Accessed August 2018.
+
+(update the month and year to the date you are visiting this site)
+
+Even better, invite us to collaborate!