Bump commonmarker to the latest

Author: yoannchaudet

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# Automatically add our team to each pull request in this repo
+* @github/pages-reviewers

.gitignore

@@ -2,3 +2,4 @@
 Gemfile.lock
 spec/dest
 .bundle
+vendor/

README.md

@@ -30,6 +30,8 @@ To specify extensions and options for use in converting Markdown to HTML, supply
 
 ```yaml
 commonmark:
-  options: ["SMART", "FOOTNOTES"]
+  options: ["UNSAFE", "SMART", "FOOTNOTES"]
   extensions: ["strikethrough", "autolink", "table", "tagfilter"]
 ```
+
+⚠ The `UNSAFE` option is required for HTML rendering.

jekyll-commonmark-ghpages.gemspec

@@ -3,9 +3,9 @@
 Gem::Specification.new do |spec|
   spec.name          = "jekyll-commonmark-ghpages"
   spec.summary       = "CommonMark generator for Jekyll"
-  spec.version       = "0.1.6"
-  spec.authors       = ["Ashe Connor"]
-  spec.email         = "kivikakk@github.com"
+  spec.version       = "0.2.0"
+  spec.authors       = ["GitHub, Inc."]
+  spec.email         = "support@github.com"
   spec.homepage      = "https://github.com/github/jekyll-commonmark-ghpages"
   spec.licenses      = ["MIT"]
 
@@ -14,8 +14,9 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
+  spec.add_runtime_dependency "jekyll", "~> 3.9.0"
   spec.add_runtime_dependency "jekyll-commonmark", "~> 1.2"
-  spec.add_runtime_dependency "commonmarker", "~> 0.17.6"
+  spec.add_runtime_dependency "commonmarker", "~> 0.23.4"
   spec.add_runtime_dependency "rouge", ">= 2.0", "< 4.0"
 
   spec.add_development_dependency "rspec", "~> 3.0"

spec/test_spec.rb

@@ -21,7 +21,7 @@
   let(:converter) { Jekyll::Converters::Markdown::CommonMarkGhPages.new(config) }
   let(:config) {
     {"commonmark" => {
-      "options" => ["SMART", "FOOTNOTES"],
+      "options" => ["UNSAFE", "SMART", "FOOTNOTES"],
       "extensions" => ["tagfilter"],
     }}
   }
@@ -32,7 +32,7 @@
 
 describe Jekyll::Renderer do
   it "should not re-process markdown in a liquid tag" do
-    site = Jekyll::Site.new(Jekyll.configuration("markdown" => "CommonMarkGhPages"))
+    site = Jekyll::Site.new(Jekyll.configuration("markdown" => "CommonMarkGhPages", "commonmark" => { "options" => ["UNSAFE"] }))
     collection = Jekyll::Collection.new(site, "pages")
     document = Jekyll::Document.new("hello.md", site: site, collection: collection)
     document.content = "**Hi**\n" \