markdown optimization, few other changes

app/views/blogposts/index.atom.builder

@@ -11,7 +11,7 @@ atom_feed do |feed|
       end
       entry.url blogpost_url(post)
       entry.title post.title
-      entry.content Sanitize.clean(render_md(post.content), Sanitize::Config::RELAXED).html_safe, :type => 'html'
+      entry.content render_md(post.content).html_safe, :type => 'html'
     end
   end
 end

app/views/blogposts/index.html.erb

@@ -13,7 +13,7 @@
       <div class="items">
         <div class="item content post">
           <h2 class="headline"><%= link_to truncate(p.title, length: 60, omission: " …"), p %></h2>
-          <%= Sanitize.clean(render_md(p.content), Sanitize::Config::RELAXED).html_safe %>
+          <%= render_md(p.content).html_safe %>
         </div>
       </div>
     </div>

app/views/blogposts/show.html.erb

@@ -8,7 +8,7 @@
   <div class="items">
     <div class="item content">
       <h2 class="headline"><%= link_to truncate(@post.title, length: 60, omission: " …"), p %></h2>
-      <%= Sanitize.clean(render_md(@post.content), Sanitize::Config::RELAXED).html_safe %>
+      <%= render_md(@post.content).html_safe %>
     </div>
   </div>
 </div>

app/views/comments/_comment.html.erb

@@ -6,7 +6,7 @@
   </div>
   <div class="items">
     <div class="item content">
-      <%= Sanitize.clean(render_mini_md(c.content.gsub(/([\r\n]+\s*?){3,}/, "\n\n")), Sanitize::Config::BASIC).html_safe %>
+      <%= render_mini_md(c.content).html_safe %>
     </div>
   </div>
 </div>

app/views/comments/_new.html.erb

@@ -1,7 +1,7 @@
 <% if current_user %>
   <h3>New comment</h3>
   <%= simple_form_for [@post, @comment] do |f| %>
-    <p>> quote | _underline_ | *italic* | **bold** | `code` | [link](https://example.com)
+    <p><blockquote>&gt; quote</blockquote> | _underline_ | <i>*italic*</i> | <b>**bold**</b> | <code>`code`</code> | <mark>==mark==</mark> | <a>[link](https://example.com)</a>
     <%= f.input :content, :label => false, :as => "text", :placeholder => "Comment", input_html: {class: "comment"} %>
     <%= f.submit class: "btn blue" %>
   <% end %>

app/views/forumthreads/show.html.erb

@@ -8,7 +8,7 @@
   <div class="items">
     <div class="item content">
       <h2 class="headline"><%= link_to truncate(@thread.title, length: 60, omission: " …"), p %></h2>
-      <%= Sanitize.clean(render_md(@thread.content), Sanitize::Config::RELAXED).html_safe %>
+      <%= render_md(@thread.content).html_safe %>
     </div>
   </div>
 </div>

app/views/users/show.html.erb

@@ -82,5 +82,5 @@
     </tbody>
   </table>
   About:<br>
-  <%= @user.about.blank? ? "<span class=\"no-about\">nothing</span>".html_safe : @user.about %>
+  <%= @user.about.blank? ? "<span class=\"no-about\">nothing</span>".html_safe : render_mini_md(@user.about).html_safe %>
 </div>