doc build test again (AtsushiSakai#361)

* try doc build

* try doc build

Author: AtsushiSakai

.github/workflows/main.yml renamed to .github/workflows/circleci-artifacts-redirector.yml

@@ -6,7 +6,7 @@ jobs:
     name: Run CircleCI artifacts redirector
     steps:
       - name: run-circleci-artifacts-redirector
-        uses: larsoner/circleci-artifacts-redirector-action@master
+        uses: larsoner/circleci-artifacts-redirector-action@0.2.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           artifact-path: 0/html/index.html

docs/index.rst

@@ -8,7 +8,7 @@ Welcome to PythonRobotics's documentation!
 
 Python codes for robotics algorithm. The project is on `GitHub`_.
 
-This is a Python code collection of robotics algorithms, especially for autonomous navigation.
+This is a Python code collection of robotics algorithms.
 
 Features: