doc: update readme

README.md

@@ -14,11 +14,19 @@ This repository contains the code used in **A Deep Learning-based Radiomics for
 <p align='center'>
   <img src="./workflow.png">
 <p>
-  
-### Results
-  
+<p align = "center">
+<b>Fig.1:Workflow employed in this study.</b>
+</p>
 
+
+### Results
 
+<p align='center'>
+  <img src="./vgg-16-with-gradcam.png">
+<p> 
+<p align = "center">
+<b>Fig.3: Visual assessment with Grad-CAM from a COVID-19 case, showing the behavior from Grad-CAM about one example extracted from each convolution process. Remark that COVID-19 case is labeled 0 and Normal (Healthy) is 1.</b>
+</p>
 
 ### Citing us
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