feat: add new examples from pocketflow-academy

cookbook/pocketflow-tool-embeddings/tools/embeddings.py

@@ -0,0 +1,8 @@
+from utils.call_llm import client
+
+def get_embedding(text):
+    response = client.embeddings.create(
+        model="text-embedding-ada-002",
+        input=text
+    )
+    return response.data[0].embedding