Update build status badge

Author: takaoka-k-wap

README.md

@@ -1,7 +1,7 @@
 # SudachiPy
 [![PyPi version](https://img.shields.io/pypi/v/sudachipy.svg)](https://pypi.python.org/pypi/sudachipy/)
 [![](https://img.shields.io/badge/python-3.5+-blue.svg)](https://www.python.org/downloads/release/python-350/)
-[![Build Status](https://travis-ci.com/WorksApplications/SudachiPy.svg?branch=develop)](https://travis-ci.com/WorksApplications/SudachiPy)
+[![Build Status](https://github.com/WorksApplications/SudachiPy/actions/workflows/build.yml/badge.svg)](https://github.com/WorksApplications/SudachiPy/actions/workflows/build.yml)
 [![](https://img.shields.io/github/license/WorksApplications/SudachiPy.svg)](https://github.com/WorksApplications/SudachiPy/blob/develop/LICENSE)
 
 [日本語](/docs/tutorial.md)