Update _config.yml

Author: structured-query-language

_config.yml

@@ -8,10 +8,5 @@ titles_from_headings:
 remote_theme: jekyll/minima
 minima:
   skin: solarized
-  social_links:
-    - { platform: github,         user_url: "https://github.com/structured-query-language/structured-query-language.github.io" }
-
-header_pages:
-  - README.md
 
 repository: https://github.com/structured-query-language/structured-query-language.github.io