Finetune example to be able to run ollama example without need to tweak context size in Modelfile

examples/lightrag_ollama_demo.py

@@ -15,9 +15,10 @@ if not os.path.exists(WORKING_DIR):
 rag = LightRAG(
     working_dir=WORKING_DIR,
     llm_model_func=ollama_model_complete,
-    llm_model_name="mistral:7b",
-    llm_model_max_async=2,
-    llm_model_kwargs={"host": "http://localhost:11434"},
+    llm_model_name="gemma2:2b",
+    llm_model_max_async=4,
+    llm_model_max_token_size=32768,
+    llm_model_kwargs={"host": "http://localhost:11434", "options": {"num_ctx": 32768}},
     embedding_func=EmbeddingFunc(
         embedding_dim=768,
         max_token_size=8192,
@@ -27,7 +28,6 @@ rag = LightRAG(
     ),
 )
 
-
 with open("./book.txt") as f:
     rag.insert(f.read())