Added dataset visualization

README.md

@@ -6,6 +6,13 @@ license: mit
 
 This data sets can be retrieved from [AVIRIS NASA](http://aviris.jpl.nasa.gov/) site. Among the many datasets available, the .mat archive posted here corresponds to the _f970619t01p02_r02_sc03.a.rfl_ reflectance file.
 
+# Quick look
+
+<figure>
+    <img src= "assets/Cuprite_false_greyscale.png" alt="Cuprite" width="300" />
+    <figcaption>False greyscale image of Cuprite sample.</figcaption>
+</figure>
+
 # Credits
 
 This dataset was originally collected by Manuel Graña, Miguel-Angel Veganzones, Borja Ayerdi.