Note: It takes time ...
-You will find the results in the 'out' folder.
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+You will find the results in the 'out' folder.
+
+### Viewer
+
+If you would like to see a kind of summary, please run:
+
+```
+cd viewer
+npm install
+npm start
+```
+
+... and view in your browser
+
+```
+http://localhost:3000
+```
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