Create asciidoctor-ghpages.yml

Uses the Asciidoctor GhPages Action
to automatically build the README.adoc (and any other adoc file) to HTML, pushing to the gh-pages branch to enable GitHub Pages for the project.

Author: manoelcampos

.github/workflows/asciidoctor-ghpages.yml

@@ -0,0 +1,26 @@
+name: asciidoctor-ghpages
+
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the master branch
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+    - uses: actions/checkout@v2
+      
+    - name: asciidoctor-ghpages
+      uses: manoelcampos/asciidoctor-ghpages-action@v1.1.0
+      with:
+        asciidoctor_params: --attribute=nofooter