docs(README): Updates the CI status badge to source from GitHub workflows. (conventional-changelog#595)

- Updates badge based on the removal of Travis (conventional-changelog#583)

Author: jbottigliero

README.md

@@ -2,7 +2,7 @@
 
 A utility for versioning using [semver](https://semver.org/) and CHANGELOG generation powered by [Conventional Commits](https://conventionalcommits.org).
 
-[![Build Status](https://travis-ci.org/conventional-changelog/standard-version.svg?branch=master)](https://travis-ci.org/conventional-changelog/standard-version)
+![ci](https://github.com/conventional-changelog/standard-version/workflows/ci/badge.svg)
 [![NPM version](https://img.shields.io/npm/v/standard-version.svg)](https://www.npmjs.com/package/standard-version)
 [![Coverage Status](https://coveralls.io/repos/conventional-changelog/standard-version/badge.svg?branch=)](https://coveralls.io/r/conventional-changelog/standard-version?branch=master)
 [![Conventional Commits](https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg)](https://conventionalcommits.org)