update link

docs/how-to-guides/develop-a-tool/create-custom-llm-tool.md

@@ -7,9 +7,9 @@ Custom LLM is a large language model fine-tuned by yourself. If you find it has
 - Please ensure that your [Prompt flow for VS Code](https://marketplace.visualstudio.com/items?itemName=prompt-flow.prompt-flow) is updated to version 1.2.0 or later.
 
 ## How to create a custom LLM tool
-Here we use [an existing tool package](../../../examples/tools/tool-package-quickstart/my_tool_package) as an example. If you want to create your own tool, please refer to [create and use tool package](create-and-use-tool-package.md).  
+Here we use [an existing tool package](https://github.com/microsoft/promptflow/tree/main/examples/tools/tool-package-quickstart/my_tool_package) as an example. If you want to create your own tool, please refer to [create and use tool package](create-and-use-tool-package.md).  
 
-1. Develop tool code like in [this example](../../../examples/tools/tool-package-quickstart/my_tool_package/tools/tool_with_custom_llm_type.py).
+1. Develop tool code like in [this example](https://github.com/microsoft/promptflow/blob/main/examples/tools/tool-package-quickstart/my_tool_package/tools/tool_with_custom_llm_type.py).
 - Add a `CustomConnection` input to the tool, it is used for authenticating and establishing a connection to the customized large language model.
 - Add a `PromptTemplate` input to the tool, it is used to pass into the customized large language model as an argument.
 
@@ -32,7 +32,7 @@ Here we use [an existing tool package](../../../examples/tools/tool-package-quic
     ```
     python <path-to-scripts>\tool\generate_package_tool_meta.py -m <tool_module> -o <tool_yaml_path> -t "custom_llm"
     ```
-    Here we use [an existing tool](../../../examples/tools/tool-package-quickstart/my_tool_package/yamls/tool_with_custom_llm_type.yaml) as an example.
+    Here we use [an existing tool](https://github.com/microsoft/promptflow/blob/main/examples/tools/tool-package-quickstart/my_tool_package/yamls/tool_with_custom_llm_type.yaml) as an example.
     ```
     cd D:\proj\github\promptflow\examples\tools\tool-package-quickstart
 
@@ -57,6 +57,6 @@ Here we use [an existing tool package](../../../examples/tools/tool-package-quic
 ## Use custom LLM tool in VS Code extension
 Follow the steps to [build and install your tool package](create-and-use-tool-package.md#build-and-share-the-tool-package) and [use your tool from VS Code extension](create-and-use-tool-package.md#use-your-tool-from-vscode-extension).  
 
-Here we use an existing flow to demonstrate the experience, open [this flow](../../../examples/flows/standard/custom_llm_tool_showcase/flow.dag.yaml) in VS Code extension.  
+Here we use an existing flow to demonstrate the experience, open [this flow](https://github.com/microsoft/promptflow/blob/main/examples/tools/use-cases/custom_llm_tool_showcase/flow.dag.yaml) in VS Code extension.  
 - There is a node named "my_custom_llm_tool" with a prompt template file. You can either use an existing file or create a new one as the prompt template file.  
 ![use_my_custom_llm_tool](../../media/how-to-guides/develop-a-tool/use_my_custom_llm_tool.png)