Try to make a theme visible on my webpage by trying a theme from

mmistakes/minimal-mistakes#1339

Gemfile

@@ -1,2 +1,3 @@
 source 'https://rubygems.org'
 gem 'github-pages', group: :jekyll_plugins
+gem 'jekyll-remote-theme

_config.yml

@@ -1 +1,4 @@
-theme: jekyll-theme-architect
+plugins:
+  - jekyll-remote-theme
+
+remote_theme: mmistakes/minimal-mistakes

_site/assets/css/print.css

@@ -0,0 +1,87 @@
+html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video { padding: 0; margin: 0; font: inherit; font-size: 100%; vertical-align: baseline; border: 0; }
+
+/* HTML5 display-role reset for older browsers */
+article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; }
+
+body { line-height: 1; }
+
+ol, ul { list-style: none; }
+
+blockquote, q { quotes: none; }
+
+blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; }
+
+table { border-spacing: 0; border-collapse: collapse; }
+
+body { font-family: 'Helvetica Neue', Helvetica, Arial, serif; font-size: 13px; line-height: 1.5; color: #000; }
+
+a { font-weight: bold; color: #d5000d; }
+
+header { padding-top: 35px; padding-bottom: 10px; }
+
+header h1 { font-size: 48px; font-weight: bold; line-height: 1.2; color: #303030; letter-spacing: -1px; }
+
+header h2 { font-size: 24px; font-weight: normal; line-height: 1.3; color: #aaa; letter-spacing: -1px; }
+
+#downloads { display: none; }
+
+#main_content { padding-top: 20px; }
+
+code, pre { margin-bottom: 30px; font-family: Monaco, "Bitstream Vera Sans Mono", "Lucida Console", Terminal; font-size: 12px; color: #222; }
+
+code { padding: 0 3px; }
+
+pre { padding: 20px; overflow: auto; border: solid 1px #ddd; }
+
+pre code { padding: 0; }
+
+ul, ol, dl { margin-bottom: 20px; }
+
+/* COMMON STYLES */
+table { width: 100%; border: 1px solid #ebebeb; }
+
+th { font-weight: 500; }
+
+td { font-weight: 300; text-align: center; border: 1px solid #ebebeb; }
+
+form { padding: 20px; background: #f2f2f2; }
+
+/* GENERAL ELEMENT TYPE STYLES */
+h1 { font-size: 2.8em; }
+
+h2 { margin-bottom: 8px; font-size: 22px; font-weight: bold; color: #303030; }
+
+h3 { margin-bottom: 8px; font-size: 18px; font-weight: bold; color: #d5000d; }
+
+h4 { font-size: 16px; font-weight: bold; color: #303030; }
+
+h5 { font-size: 1em; color: #303030; }
+
+h6 { font-size: .8em; color: #303030; }
+
+p { margin-bottom: 20px; font-weight: 300; }
+
+a { text-decoration: none; }
+
+p a { font-weight: 400; }
+
+blockquote { padding: 0 0 0 30px; margin-bottom: 20px; font-size: 1.6em; border-left: 10px solid #e9e9e9; }
+
+ul li { padding-left: 20px; list-style-position: inside; list-style: disc; }
+
+ol li { padding-left: 3px; list-style-position: inside; list-style: decimal; }
+
+dl dd { font-style: italic; font-weight: 100; }
+
+footer { padding-top: 20px; padding-bottom: 30px; margin-top: 40px; font-size: 13px; color: #aaa; }
+
+footer a { color: #666; }
+
+/* MISC */
+.clearfix:after { display: block; height: 0; clear: both; visibility: hidden; content: '.'; }
+
+.clearfix { display: inline-block; }
+
+* html .clearfix { height: 1%; }
+
+.clearfix { display: block; }