chore(i18n,docs): update translations (#44282)

docs/i18n/italian/how-to-work-on-coding-challenges.md

@@ -64,10 +64,13 @@ I test da eseguire sul codice scritto dall'utente, in coppie di testo markdown e
 Codice per test uno
 ```
 
-Altre istruzioni in sintassi markdown
+If you want dynamic output based on the user's code, --fcc-expected-- and --fcc-actual-- will be replaced with the expected and actual values of the test's assertion. Take care if you have multiple assertions since the first failing assertion will determine the values of --fcc-expected-- and --fcc-actual--.
 
 ```js
-Altro codice
+assert.equal(
+  'this will replace --fcc-actual--',
+  'this will replace --fcc-expected--'
+);
 ```
 
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