added theme sass file

Author: sudeshjethoe

Gemfile

@@ -14,4 +14,5 @@ group :jekyll_plugins do
   gem "jemoji"
   gem "jekyll-include-cache"
   gem "jekyll-algolia"
+  gem "minimal-mistakes-jekyll"
 end

Gemfile.lock

@@ -230,6 +230,13 @@ GEM
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
+    minimal-mistakes-jekyll (4.22.0)
+      jekyll (>= 3.7, < 5.0)
+      jekyll-feed (~> 0.1)
+      jekyll-gist (~> 1.5)
+      jekyll-include-cache (~> 0.1)
+      jekyll-paginate (~> 1.1)
+      jekyll-sitemap (~> 1.3)
     minitest (5.14.3)
     multipart-post (2.1.1)
     nokogiri (1.11.1)
@@ -291,6 +298,7 @@ DEPENDENCIES
   jekyll-paginate
   jekyll-sitemap
   jemoji
+  minimal-mistakes-jekyll
   tzinfo-data
 
 BUNDLED WITH

assets/css/main.scss

@@ -0,0 +1,8 @@
+---
+# Only the main Sass file needs front matter (the dashes are enough)
+---
+
+@charset "utf-8";
+
+@import "minimal-mistakes/skins/{{ site.minimal_mistakes_skin | default: 'default' }}"; // skin
+@import "minimal-mistakes"; // main partials