Fix invalid configuration options

Author: parkerbxyz

_config.yml

@@ -11,8 +11,9 @@ title_separator: "-"
 name: "GitHub, Inc."
 description:
 url: "https://training.github.com"
-baseurl: # the subpath of your site, e.g. "/blog"
+baseurl: ""# the subpath of your site, e.g. "/blog"
 gh_repo: github/training-kit
+github: [metadata]
 teaser: # filename of teaser fallback teaser image placed in /images/, .e.g. "500x300.png"
 breadcrumbs: true # true, false (default)
 words_per_minute: 200
@@ -34,7 +35,6 @@ incremental: false
 # standard jekyll configuration
 
 parentsite: https://services.github.com
-permalink: /articles/:title/
 plugins:
  - jekyll-paginate
  - jekyll-sitemap
@@ -72,7 +72,7 @@ sass:
 load_paths:
  - assets/_scss
  - node_modules
-style: :compressed
+style: compressed
 
 # Custom site configuration
 lang: en