[DocSums] Fix doc sum issues (#257)

* Update README.md for docker instruction issues

some fixes for docker build instructions

Signed-off-by: Tsai, Louie <louie.tsai@intel.com>

* Update README.md for new frontend

Signed-off-by: Tsai, Louie <louie.tsai@intel.com>

* Update README.md for output example

Signed-off-by: Tsai, Louie <louie.tsai@intel.com>

* pre-commit change

Signed-off-by: Tsai, Louie <louie.tsai@intel.com>

* fix for pre-commit

Signed-off-by: Tsai, Louie <louie.tsai@intel.com>

---------

Signed-off-by: Tsai, Louie <louie.tsai@intel.com>

DocSum/docker/gaudi/README.md

@@ -22,7 +22,7 @@ docker pull ghcr.io/huggingface/tgi-gaudi:1.2.1
 ### 2. Build LLM Image
 
 ```bash
-docker build -t opea/llm-docsum-tgi:latest --build-arg https_proxy=$https_proxy --build-arg http_proxy=$http_proxy -f comps/llms/docsum/langchain/docker/Dockerfile .
+docker build -t opea/llm-docsum-tgi:latest --build-arg https_proxy=$https_proxy --build-arg http_proxy=$http_proxy -f comps/llms/summarization/tgi/Dockerfile .
 ```
 
 ### 3. Build MegaService Docker Image
@@ -128,4 +128,8 @@ export LANGCHAIN_API_KEY=ls_...
 
 Open this URL `http://{host_ip}:5173` in your browser to access the frontend.
 
-![project-screenshot](../../assets/img/docSum_ui_text.png)
+![project-screenshot](https://github.com/intel-ai-tce/GenAIExamples/assets/21761437/93b1ed4b-4b76-4875-927e-cc7818b4825b)
+
+Here is an example for summarizing a article.
+
+![image](https://github.com/intel-ai-tce/GenAIExamples/assets/21761437/67ecb2ec-408d-4e81-b124-6ded6b833f55)