Added docs about how to quit the LLM

rkllm-runtime/example/README.md

@@ -12,6 +12,8 @@ cp build/build_linux_aarch64_Release/llm_demo /usr/bin
 cp ../runtime/Linux/librkllm_api/aarch64/librkllmrt.so /usr/local/include
 ```
 
+To exit the LLM enter either `exit` or `quit`.
+
 ## Run
 ```bash
 adb shell

rkllm-runtime/example/src/main.cpp

@@ -53,7 +53,7 @@ void callback(const char *text, void *userdata, LLMCallState state)
     {
         printf("\\LLM run error\n");
     }
-    else 
+    else
     {
         printf("%s", text);
     }
@@ -86,6 +86,7 @@ int main(int argc, char **argv)
     pre_input.push_back("Welcome to ezrkllm! This is an adaptation of Rockchip's rknn-llm repo (see github.com/airockchip/rknn-llm) for running LLMs on its SoCs' NPUs. \n");
     pre_input.push_back("You are currently running the runtime for ");
     pre_input.push_back(param.target_platform);
+    pre_input.push_back("\nTo exit the model, enter either exit or quit\n");
     pre_input.push_back("\nMore information here: https://github.com/Pelochus/ezrknpu");
     pre_input.push_back("\nDetailed information for devs here: https://github.com/Pelochus/ezrknn-llm");