docs: -adding lesson 2

02-first-ai-app/solution/solution-quiz.md

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+
+Correct: A1, A2 

02-first-ai-app/solution/solution.md

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+Here's the solution
+
+```javascript 
+
+// 1. Define the prompt
+// ----------------------------------- 
+
+const messages = [ 
+{ 
+    "role": "developer", 
+    "content": "You're a helpful assistant here to assist Leonardo Da Vinci with the calculations and design of his inventions." 
+
+}]; 
+
+// 2. Create client
+// -----------------------------------
+
+const openai = new OpenAI({
+  baseURL: "https://models.inference.ai.azure.com",
+  apiKey: process.env.GITHUB_TOKEN,
+});
+
+
+// 3. Send the request
+// -----------------------------------
+
+const completion = await openai.chat.completions.create({
+    model: 'gpt-4',
+    messages: messages,
+});
+
+console.log(`Answer for "${question}":`);
+
+// 4. Print the answer
+// -----------------------------------
+
+console.log(completion.choices[0]?.message?.content); 
+```