Change references to old default branch master to new default branch main

Author: greg-1-anderson

.travis.yml

@@ -2,7 +2,7 @@ language: php
 
 branches:
   only:
-  - master
+  - main
   - "/^[[:digit:]]+\\.[[:digit:]]+\\.[[:digit:]]+.*$/"
 
 matrix:

README.md

@@ -2,7 +2,7 @@
 
 Provide a safer alternative to `composer global require`.
 
-[![Build Status](https://travis-ci.org/consolidation/cgr.svg?branch=master)](https://travis-ci.org/consolidation/cgr) [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/consolidation/cgr/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/consolidation/cgr/?branch=master) [![Coverage Status](https://coveralls.io/repos/github/consolidation/cgr/badge.svg?branch=master)](https://coveralls.io/github/consolidation/cgr?branch=master) [![License](https://poser.pugx.org/consolidation/cgr/license)](https://packagist.org/packages/consolidation/cgr)
+[![Build Status](https://travis-ci.org/consolidation/cgr.svg?branch=main)](https://travis-ci.org/consolidation/cgr) [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/consolidation/cgr/badges/quality-score.png?b=main)](https://scrutinizer-ci.com/g/consolidation/cgr/?branch=main) [![Coverage Status](https://coveralls.io/repos/github/consolidation/cgr/badge.svg?branch=main)](https://coveralls.io/github/consolidation/cgr?branch=main) [![License](https://poser.pugx.org/consolidation/cgr/license)](https://packagist.org/packages/consolidation/cgr)
 
 ## Component Status
 

composer.json

@@ -35,7 +35,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.x-dev"
+            "dev-main": "2.x-dev"
         }
     }
 }