diff --git a/index.html b/index.html
index 49af0ba..4a86536 100644
--- a/index.html
+++ b/index.html
@@ -53,6 +53,7 @@
       <ul>
         <li>References</li>
         <li><a href="https://github.com/davidgf/design-patterns-in-ruby">GoF Design patterns in Ruby</a></li>
+        <li><a href="href=https://github.com/piscolomo/ruby-patterns/blob/master/README.md">ruby patterns</a></li>
         <li><a href="https://github.com/bbatsov/rubocop/blob/master/config/default.yml">rubocop yml</a></li>
         <li><a href="http://danwin.com/2013/03/ruby-minitest-cheat-sheet/">minitest cheatsheet</a></li>
         <li><a href="http://www.mattsears.com/articles/2011/12/10/minitest-quick-reference/">minitest (mattsears)</a></li>
@@ -64,7 +65,7 @@
 
       <ul>
         <li>Front-End</li>
-        <li><a href="http://codepen.io/enxaneta/full/adLPwv/">flexbox cheatsheet</a></li>
+        <li><a href="https://codepen.io/enxaneta/full/adLPwv">flexbox cheatsheet</a></li>
         <li><a href="http://brajeshwar.github.io/entities/">html entities</a></li>
         <li><a href="https://github.com/AllThingsSmitty/css-protips">CSS Protips</a></li>
         <li><a href="https://github.com/assemble/handlebars-helpers#helpers">handlebar helpers</a></li>