diff --git a/README.md b/README.md
index d11efdcba..9a8938e47 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ Documentation: https://mmocr.readthedocs.io/en/latest/.
 
 - **Modular Design**
 
-  The modular design of MMOCR enables users to define their own optimizers, data preprocessors, and model components such as backbones, necks and heads as well as losses. Please refer to [getting_started.md](docs/getting_started.md) for how to construct a customized model.
+  The modular design of MMOCR enables users to define their own optimizers, data preprocessors, and model components such as backbones, necks and heads as well as losses. Please refer to [Getting Started](https://mmocr.readthedocs.io/en/latest/getting_started.html) for how to construct a customized model.
 
 - **Numerous Utilities**
 
@@ -111,11 +111,11 @@ v0.3.0 was released in 2021-8-25.
 
 ## Installation
 
-Please refer to [install.md](docs/install.md) for installation.
+Please refer to our [Install Guide](https://mmocr.readthedocs.io/en/latest/install.html).
 
 ## Get Started
 
-Please see [getting_started.md](docs/getting_started.md) for the basic usage of MMOCR.
+Please see [Getting Started](https://mmocr.readthedocs.io/en/latest/getting_started.html) for the basic usage of MMOCR.
 
 ## Contributing
 
diff --git a/README_zh-CN.md b/README_zh-CN.md
index 564108361..f99f25e53 100644
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -37,7 +37,7 @@ MMOCR 是基于 PyTorch 和 mmdetection 的开源工具箱，专注于文本检
 -**模块化设计**
 
   MMOCR 的模块化设计使用户可以定义自己的优化器，数据预处理器，模型组件如主干模块，颈部模块和头部模块，以及损失函数。有关如何构建自定义模型的信
-息，请参考[快速入门](docs/getting_started.md)。
+息，请参考[快速入门](https://mmocr.readthedocs.io/zh_CN/latest/getting_started.html)。
 
 -**众多实用工具**
 
@@ -111,11 +111,11 @@ MMOCR 是基于 PyTorch 和 mmdetection 的开源工具箱，专注于文本检
 
 ## 安装
 
-请参考[安装文档](docs/install.md)进行安装。
+请参考[安装文档](https://mmocr.readthedocs.io/zh_CN/latest/install.html)进行安装。
 
 ## 快速入门
 
-请参考[快速入门](docs/getting_started.md)文档学习 MMOCR 的基本使用。
+请参考[快速入门](https://mmocr.readthedocs.io/zh_CN/latest/getting_started.html)文档学习 MMOCR 的基本使用。
 
 ## 贡献指南
 
diff --git a/docs/en/merge_docs.sh b/docs/en/merge_docs.sh
index 1b5e4e17b..34d9b5e6c 100755
--- a/docs/en/merge_docs.sh
+++ b/docs/en/merge_docs.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 
 # gather models
-cat ../../configs/kie/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Key Information Extraction Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >kie_models.md
-cat ../../configs/textdet/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Text Detection Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textdet_models.md
-cat ../../configs/textrecog/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Text Recognition Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textrecog_models.md
-cat ../../configs/ner/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Named Entity Recognition Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >ner_models.md
+sed -e '$a\\n' -s ../../configs/kie/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Key Information Extraction Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >kie_models.md
+sed -e '$a\\n' -s ../../configs/textdet/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Text Detection Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textdet_models.md
+sed -e '$a\\n' -s ../../configs/textrecog/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Text Recognition Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textrecog_models.md
+sed -e '$a\\n' -s ../../configs/ner/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# Named Entity Recognition Models' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >ner_models.md
 
 # replace special symbols in demo.md
 cp ../../demo/README.md demo.md
diff --git a/docs/zh_cn/merge_docs.sh b/docs/zh_cn/merge_docs.sh
index 32bee64ed..dfa9765c9 100755
--- a/docs/zh_cn/merge_docs.sh
+++ b/docs/zh_cn/merge_docs.sh
@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
 
 # gather models
-cat ../../configs/kie/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 关键信息提取模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >kie_models.md
-cat ../../configs/textdet/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 文本检测模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textdet_models.md
-cat ../../configs/textrecog/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 文本识别模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textrecog_models.md
-cat ../../configs/ner/*/*.md | sed '$a\\n' | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 命名实体识别模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >ner_models.md
+sed -e '$a\\n' -s ../../configs/kie/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 关键信息提取模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >kie_models.md
+sed -e '$a\\n' -s ../../configs/textdet/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 文本检测模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textdet_models.md
+sed -e '$a\\n' -s ../../configs/textrecog/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 文本识别模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >textrecog_models.md
+sed -e '$a\\n' -s ../../configs/ner/*/*.md | sed "s/md###t/html#t/g" | sed "s/#/#&/" | sed '1i\# 命名实体识别模型' | sed 's/](\/docs\//](/g' | sed 's=](/=](https://github.com/open-mmlab/mmocr/tree/master/=g' >ner_models.md
 
 # replace special symbols in demo.md
 cp ../../demo/README.md demo.md