fix(.github): move to "main" branch and update badge (#269)

.github/workflows/docker-publish.yml

@@ -2,16 +2,16 @@ name: Docker
 
 on:
   push:
-    # Publish `master` as Docker `latest` image.
+    # Publish `main` as Docker `latest` image.
     branches:
-      - master
+      - main
     # Publish `v1.2.3` tags as releases.
     tags:
       - v*
-  # Run tests for any PRs against master.
+  # Run tests for any PRs against the main branch.
   pull_request:
     branches:
-      - master
+      - main
 
 env:
   IMAGE_NAME: go-dev
@@ -72,7 +72,7 @@ jobs:
           VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
 
           # Use Docker `latest` tag convention
-          [ "$VERSION" == "master" ] && VERSION=latest
+          [ "$VERSION" == "main" ] && VERSION=latest
 
           echo IMAGE_ID=$IMAGE_ID
           echo VERSION=$VERSION
@@ -95,7 +95,7 @@ jobs:
           VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
 
           # Use Docker `latest` tag convention
-          [ "$VERSION" == "master" ] && VERSION=latest
+          [ "$VERSION" == "main" ] && VERSION=latest
 
           echo IMAGE_ID=$IMAGE_ID
           echo VERSION=$VERSION
@@ -118,7 +118,7 @@ jobs:
           VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
 
           # Use Docker `latest` tag convention
-          [ "$VERSION" == "master" ] && VERSION=latest
+          [ "$VERSION" == "main" ] && VERSION=latest
 
           echo IMAGE_ID=$IMAGE_ID
           echo VERSION=$VERSION

README.md

@@ -1,6 +1,6 @@
 # deis/go-dev
 
-[![Build Status](https://travis-ci.org/deis/docker-go-dev.svg?branch=master)](https://travis-ci.org/deis/docker-go-dev) [![Docker Repository on Quay](https://quay.io/repository/deis/go-dev/status "Docker Repository on Quay")](https://quay.io/repository/deis/go-dev)
+[![Build Status](https://github.com/deis/docker-go-dev/actions/workflows/docker-publish.yml/badge.svg)](https://quay.io/repository/deis/go-dev?tab=tags)
 
 A [Go][] language development toolbox.