Update documentation links to use gh-pages, and add action to publish gh-pages from Yard docs.

Author: gkellogg

.github/workflows/generate-docs.yml

@@ -0,0 +1,27 @@
+name: Build & deploy documentation
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Update gh-pages with docs
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v2
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.1"
+      - name: Install required gem dependencies
+        run: gem install yard --no-document
+      - name: Build YARD Ruby Documentation
+        run: yardoc
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./doc/yard
+          publish_branch: gh-pages

README.md

@@ -103,5 +103,5 @@ see <https://unlicense.org/> or the accompanying {file:UNLICENSE} file.
 [YARD]:         https://yardoc.org/
 [YARD-GS]:      https://rubydoc.info/docs/yard/file/docs/GettingStarted.md
 [PDD]:              https://unlicense.org/#unlicensing-contributions
-[RDF/XML doc]:  https://rubydoc.info/github/ruby-rdf/rdf-rdfxml/master/frames
+[RDF/XML doc]:  https://ruby-rdf.github.io/rdf-rdfxml/master/frames
 [RDF-star]:         https://w3c.github.io/rdf-star/rdf-star-cg-spec.html

lib/rdf/rdfxml/writer.rb

@@ -55,7 +55,7 @@ class Writer < RDF::RDFa::Writer
 
     ##
     # RDF/XML Writer options
-    # @see http://www.rubydoc.info/github/ruby-rdf/rdf/RDF/Writer#options-class_method
+    # @see https://ruby-rdf.github.io/rdf/RDF/Writer#options-class_method
     def self.options
       super + [
         RDF::CLI::Option.new(

rdf-rdfxml.gemspec

@@ -10,6 +10,13 @@ Gem::Specification.new do |gem|
   gem.license               = 'Unlicense'
   gem.summary               = %q{RDF/XML reader/writer for RDF.rb.}
   gem.description           = %q{RDF::RDFXML is an RDF/XML reader and writer for the RDF.rb library suite.}
+  gem.metadata           = {
+    "documentation_uri" => "https://ruby-rdf.github.io/rdf-rdfxml",
+    "bug_tracker_uri"   => "https://github.com/ruby-rdf/rdf-rdfxml/issues",
+    "homepage_uri"      => "https://github.com/ruby-rdf/rdf-rdfxml",
+    "mailing_list_uri"  => "https://lists.w3.org/Archives/Public/public-rdf-ruby/",
+    "source_code_uri"   => "https://github.com/ruby-rdf/rdf-rdfxml",
+  }
 
   gem.authors               = %w(Gregg Kellogg)
   gem.email                 = 'public-rdf-ruby@w3.org'