examples: update create example for new api

examples/create/create.ts

@@ -0,0 +1,11 @@
+import ollama from 'ollama'
+
+const stream = await ollama.create({
+    model: 'my-model',
+    from: 'smollm2',
+    system: 'You are a helpful assistant.',
+    stream: true,
+  })
+for await (const part of stream) {
+  console.log(part)
+}