Update README.md

README.md

@@ -9,6 +9,9 @@
 ### Analyzing Trends and Global Warming:
 [![How to analyze trends in sea surface temperature using CDT](https://img.youtube.com/vi/t46dTVp7NHY/0.jpg)](https://www.youtube.com/watch?v=t46dTVp7NHY)
 
+### El Niño and Empirical Orthogonal Functions:
+[![How to apply EOFs to identify ENSO](https://img.youtube.com/vi/A5UjLO-67GQ/0.jpg)](https://www.youtube.com/watch?v=A5UjLO-67GQ)
+
 # Installing the toolbox:
 There are a few different ways to install this toolbox. Pick your favorite among the following:
 
@@ -46,4 +49,4 @@ Please cite our paper!
 
 Chad A. Greene, Kaustubh Thirumalai, Kelly A. Kearney, José Miguel Delgado, Wolfgang Schwanghart, Natalie S. Wolfenbarger, Kristen M. Thyng, David E. Gwyther, Alex S. Gardner, and Donald D. Blankenship (2019). The Climate Data Toolbox for MATLAB. _Geochemistry, Geophysics, Geosystems,_ 20, 3774-3781. [doi:10.1029/2019GC008392](https://doi.org/10.1029/2019GC008392)
 
-The Climate Data Toolbox is also mirrored on the MathWorks File Exchange site [here](https://www.mathworks.com/matlabcentral/fileexchange/70338).
+The Climate Data Toolbox is also mirrored on the MathWorks File Exchange site [here](https://www.mathworks.com/matlabcentral/fileexchange/70338).