feat: update readme (#98)

* feat: update readme

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: shijinpjlab

README.md

@@ -146,6 +146,16 @@ Where `output_directory` contains the evaluation results with a `summary.json` f
 ## Online Demo
 Try Dingo on our online demo: [(Hugging Face)🤗](https://huggingface.co/spaces/DataEval/dingo)
 
+## Local Demo
+Try Dingo in local:
+
+```shell
+python app_gradio/app.py
+```
+
+![Gradio demo](docs/assets/gradio_demo.png)
+
+
 ## Google Colab Demo
 Experience Dingo interactively with Google Colab notebook: [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/DataEval/dingo/blob/dev/examples/colab/dingo_colab_demo.ipynb)
 

README_ja.md

@@ -146,6 +146,15 @@ python -m dingo.run.vsl --input output_directory
 ## オンラインデモ
 オンラインデモでDingoをお試しください: [(Hugging Face)🤗](https://huggingface.co/spaces/DataEval/dingo)
 
+## ローカルデモ
+地元でDingoを試してみましょう：
+
+```shell
+python app_gradio/app.py
+```
+
+![Gradio demo](docs/assets/gradio_demo.png)
+
 ## Google Colabデモ
 Google ColabノートブックでDingoをインタラクティブに体験してください：[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/DataEval/dingo/blob/dev/examples/colab/dingo_colab_demo.ipynb)
 

README_zh-CN.md

@@ -144,7 +144,16 @@ python -m dingo.run.vsl --input 输出目录
 ## 5. 在线演示
 尝试我们的在线演示: [(Hugging Face)🤗](https://huggingface.co/spaces/DataEval/dingo)
 
-## 6. Google Colab 演示
+## 6. 本地演示
+尝试我们的本地演示：
+
+```shell
+python app_gradio/app.py
+```
+
+![Gradio demo](docs/assets/gradio_demo.png)
+
+## 7. Google Colab 演示
 通过Google Colab笔记本交互式体验Dingo：[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/DataEval/dingo/blob/dev/examples/colab/dingo_colab_demo.ipynb)