diff --git a/.travis.yml b/.travis.yml
index cba0f41..b76401c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ install:
   - "pip install pip --upgrade"
   - "pip install -r tests-requirements.txt"
   - "pip install -r requirements.txt"
+  - "npm install -g remark-cli remark-validate-links"
 script:
   ./tests.sh
 after_success:
diff --git a/README.md b/README.md
index a73726b..04e306e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # DOTDROP
 
 [![Build Status](https://travis-ci.org/deadc0de6/dotdrop.svg?branch=master)](https://travis-ci.org/deadc0de6/dotdrop)
+[![Doc Status](https://readthedocs.org/projects/dotdrop/?version=latest)](https://dotdrop.readthedocs.io/en/latest/?badge=latest)
 [![License: GPL v3](https://img.shields.io/badge/License-GPL%20v3-blue.svg)](http://www.gnu.org/licenses/gpl-3.0)
 [![Coverage Status](https://coveralls.io/repos/github/deadc0de6/dotdrop/badge.svg?branch=master)](https://coveralls.io/github/deadc0de6/dotdrop?branch=master)
 [![PyPI version](https://badge.fury.io/py/dotdrop.svg)](https://badge.fury.io/py/dotdrop)
diff --git a/tests.sh b/tests.sh
index 16be406..053f739 100755
--- a/tests.sh
+++ b/tests.sh
@@ -69,4 +69,17 @@ unset DOTDROP_FORCE_NODEBUG
   rm -f ${log}
 }
 
+## test the doc with remark
+## https://github.com/remarkjs/remark-validate-links
+set +e
+which remark >/dev/null 2>&1
+r="$?"
+set -e
+if [ "$r" != "0" ]; then
+  echo "[WARNING] install \"remark\" to test the doc"
+else
+  remark -f -u validate-links docs/
+fi
+
+## done
 echo "All test finished successfully"