Add files via upload

Author: emrecosar

404.html

@@ -0,0 +1,15 @@
+---
+layout: default
+title: 404
+permalink: /404.html
+---
+<style>
+    .newsletter, .footer {
+        display:none;
+    }
+</style>
+<div class="text-center">
+<h1 class="mt-5"><span class="badge badge-dark font-weight-normal">404</span></h1>
+<h1 class="display-1 mt-4 mb-4"> Page not found!</h1>
+<p>Please use the search bar from the bottom left or visit our <a href="{{site.baseurl}}/">homepage</a>!</p>
+</div>

Gemfile

@@ -0,0 +1,22 @@
+source "https://rubygems.org"
+
+# Hello! This is where you manage which Jekyll version is used to run.
+# When you want to use a different version, change it below, save the
+# file and run `bundle install`. Run Jekyll with `bundle exec`, like so:
+#
+#     bundle exec jekyll serve
+#
+
+# If you have any plugins, put them here!
+gem 'wdm', '>= 0.1.0' if Gem.win_platform?
+group :jekyll_plugins do
+    gem 'jekyll-feed'
+    gem 'jekyll-sitemap'
+    gem 'jekyll-paginate'
+    gem 'jekyll-seo-tag'
+    gem 'jekyll-archives'
+    gem 'jekyll-figure'
+    gem 'bootstrap', '~> 4.4.1'
+    gem 'kramdown'
+    gem 'rouge'
+end