add better seo tags

This will add better and more complete SEO tags when the upstream theme
[allows integration with the seo-tags gem](crmne/jekyll-vitepress-theme#9)
(or we fork it).

This will provide nicer social share cards with a little snippet of what
each page is about. This is autogenerated by default and can be
overridden on a page-by-page basis if needed.

This will also improve our search rankings.

Depends on: crmne/jekyll-vitepress-theme#9

Signed-off-by: Ben Ford <binford2k@overlookinfratech.com>

Author: binford2k

Gemfile

@@ -12,6 +12,7 @@ group(:build_site) do
   gem 'jekyll', '~> 4.4'
   gem 'jekyll-tabs', '~> 1.2'
   gem 'jekyll-vitepress-theme', '~> 1.4'
+  gem 'jekyll-seo-tag', '~> 2.8'
 end
 
 group(:generate_references) do

_config.yml

@@ -10,6 +10,7 @@ theme: jekyll-vitepress-theme
 plugins:
   - jekyll-vitepress-theme
   - jekyll-tabs
+  - jekyll-seo-tag
 
 markdown: kramdown
 kramdown:
@@ -83,6 +84,10 @@ collections:
     permalink: '/openvox-containers/latest/:path:output_ext'
 
 defaults:
+  - scope:
+      path: ''
+    values:
+      image: /assets/images/HexagonSticker.png
   - scope:
       path: ''
       type: ecosystem_latest