Add initial port of 1.0.1 release to asciidoc

.github/workflows/build-spec.yml

@@ -0,0 +1,59 @@
+name: Build Spec
+
+on:
+  push:
+    branches-ignore:
+      - 'temp/*'
+  pull_request:
+    branches:
+      - 'main'
+      - 'support/v1.0.x'
+
+jobs:
+
+  build-spec:
+
+    name: Build SSP Specification
+    runs-on: ubuntu-18.04
+    steps:
+
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: List variables
+      run: |
+        [[ $GITHUB_REF_TYPE == "tag" ]] && REVNUMBER=${GITHUB_REF:11} || REVNUMBER=${GITHUB_SHA:0:7}
+        echo GITHUB_SHA:      $GITHUB_SHA
+        echo GITHUB_REF_TYPE: $GITHUB_REF_TYPE
+        echo GITHUB_REF:      $GITHUB_REF
+        echo REVNUMBER:       $REVNUMBER
+        echo "REVNUMBER=$REVNUMBER" >> $GITHUB_ENV
+
+    - name: Create build directory
+      run: |
+        mkdir -p build/schema
+        mkdir -p build/images
+
+    - name: Generate HTML
+      uses: avattathil/asciidoctor-action@master
+      with:
+        program: "asciidoctor --destination-dir=build --backend=html5 --attribute=revnumber=${{env.REVNUMBER}} --attribute=revdate=$(date +%F) docs/index.adoc"
+
+    - name: Copy resources
+      run: |
+        cp LICENSE.txt build
+        cp schema/*.xsd build/schema
+        cp docs/images/* build/images
+
+    - name: Create ZIP archive
+      uses: actions/upload-artifact@v3
+      with:
+        name: SSP-Specification
+        path: build/*
+        if-no-files-found: error
+
+    - name: Check HTML
+      uses: chabad360/htmlproofer@master
+      with:
+        directory: build
+        arguments: --only-4xx --url_ignore '/http:\/\/ssp-standard.org\/SSP1\/.*/'