Tighten up TOC in 'learn to code' by not showing gifs and svgs in it

Author: tjgrathwell

lib/contents.rb

@@ -44,7 +44,7 @@ def subpages_for filename
     content.scan /\[.*?\]\((.*?)\)/ do |link, _|
       next if (link =~ /^http/)
       next if (link =~ %r(^//)) # protocol-less absolute links e.g. //google.com
-      next if (link =~ /(jpg|png)$/)
+      next if (link =~ /\.\w{3}$/) # jpg/gif/svg/etc
       links.push(link) if !links.include? link
     end
 

sites/en/learn-to-code/computers.md

@@ -50,8 +50,6 @@
 * Input/Output
   * keyboard, mouse, touch screen, monitor
 
-bonus: [Von Neumann Machine]()
-
 # Computer Anatomy: Software
 
 * Operating System