Update index.html

Author: bgoonz

index.html

@@ -116,6 +116,7 @@
     <br>
 
     <a class="btn" href="./one-of-every-tag.html" target="_blank" rel="noopener noreferrer">HTML TAG EXAMPLES</a>
+	   <a class="btn" href="https://github.com/bgoonz/lambda-prep/blob/master/HTML_PATTERNS.html">HTML PATTERN EXAMPLES</a>
     <a class="btn" href="./directory.html">Navigation</a>
     <a class="btn" href="https://code-playground.netlify.app/">Playground</a>
     <a class="btn" href="https://web-dev-interview-prep-quiz-website.netlify.app/">Quiz Me</a>