Rename the 'master' branch to 'main'.

Author: sjrd

.github/workflows/ci.yml

@@ -2,10 +2,10 @@ name: CI
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 jobs:
   build:
     runs-on: ubuntu-latest

build.sbt

@@ -8,7 +8,7 @@ inThisBuild(Seq(
 
   homepage := Some(url("https://www.scala-js.org/")),
   licenses += ("BSD New",
-      url("https://github.com/scala-js/scala-js-env-jsdom-nodejs/blob/master/LICENSE")),
+      url("https://github.com/scala-js/scala-js-env-jsdom-nodejs/blob/main/LICENSE")),
   scmInfo := Some(ScmInfo(
       url("https://github.com/scala-js/scala-js-env-jsdom-nodejs"),
       "scm:git:[email protected]:scala-js/scala-js-env-jsdom-nodejs.git",