Update README.md

Author: danielsanjosepro

README.md

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 # ROS2 Dev Docker Template
 
+![Build](https://github.com/danielsanjosepro/ros2_docker_template/actions/workflows/docker_build.yml/badge.svg)
+https://github.com/OWNER/REPOSITORY/actions/workflows/WORKFLOW-FILE/badge.svg
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 My simple devcontainer template to start ROS2 applications using my dotfiles which include nvim and zellij. If you are not using VSCode, simply run start_dev.sh in the terminal (after installing the devcontainer-cli) and you are good to go.