Update README.md

Author: jmplaza

docs/README.md

@@ -285,8 +285,8 @@ If you have any issue feel free to drop a mail <[email protected]> or cre
 
 ## Sample of input and output
 
-<img src="./docs/screen1.png" alt="Screenshot" style="max-width:100%;">
+<img src="https://jderobot.github.io/DetectionSuite/screen1.png" alt="Screenshot" style="max-width:100%;">
 
-<img src="./docs/screen2.png" alt="Screenshot" style="max-width:100%;">
+<img src="https://jderobot.github.io/DetectionSuite/screen2.png" alt="Screenshot" style="max-width:100%;">
 
-<img src="./docs/screen3.png" alt="Screenshot" style="max-width:100%;">
+<img src="https://jderobot.github.io/DetectionSuite/screen3.png" alt="Screenshot" style="max-width:100%;">