chore: migrate branch to main

Author: lpatiny

.github/workflows/nodejs.yml

@@ -3,7 +3,7 @@ name: Node.js CI
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 jobs:

.github/workflows/release.yml

@@ -3,7 +3,7 @@ name: Release
 on:
   push:
     branches:
-      - master
+      - main
 
 jobs:
   release:

README.md

@@ -38,7 +38,7 @@ const baseline = rollingBall(spectrum, 200, 400);
 
 [npm-image]: https://img.shields.io/npm/v/ml-rolling-ball-baseline.svg
 [npm-url]: https://www.npmjs.com/package/ml-rolling-ball-baseline
-[ci-image]: https://github.com/mljs/rolling-ball-baseline/workflows/Node.js%20CI/badge.svg?branch=master
+[ci-image]: https://github.com/mljs/rolling-ball-baseline/workflows/Node.js%20CI/badge.svg?branch=main
 [ci-url]: https://github.com/mljs/rolling-ball-baseline/actions?query=workflow%3A%22Node.js+CI%22
 [download-image]: https://img.shields.io/npm/dm/ml-rolling-ball-baseline.svg
 [download-url]: https://www.npmjs.com/package/ml-rolling-ball-baseline