diff --git a/README.md b/README.md
index b25c489a6e6699964298865650f0872b85713bb2..9fa21cc63065205e78d26c16cd628f1172bae13b 100644
--- a/README.md
+++ b/README.md
@@ -12,4 +12,6 @@ I have tested the new code with JDK 14, JavaFX 14, and Eclipse (4.16). JavaFX, C
 --add-opens=javafx.controls/javafx.scene.control.skin=org.controlsfx.controls
 --add-opens=javafx.graphics/javafx.scene=org.controlsfx.controls`
 
-The main class of the application is: `fr.inria.structgraphics.VisSketcher` 
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+The main class of the application is: `fr.inria.structgraphics.VisSketcher` 
+
+To start with the tool, we can open existing vsualization designs found in the gallery folder (.json and .wrk), where .wrk files have also a JSON syntax but store the entire workspace of a user, including the library, the graphical structures, and the data on the spreedsheet.    
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