added docs

exo-recapitulatif/script.js

@@ -1,8 +1,12 @@
-
+import {std as average} from "https://cdn.jsdelivr.net/gh/didiercrunch/cours-420-301-ah@main/modules-examples/stats.js";
+import {isValidIsbn} from "https://cdn.jsdelivr.net/gh/didiercrunch/cours-420-301-ah@main/modules-examples/books.js";
 export function toto(){
+    console.log(average([10, 15]));
     console.log("say toto");
 }
 
+alert(isValidIsbn("ddd"))
+
 export function hello(){
     console.log("say hello");
 }