fix: Add link to blog in header.

Updated links in the navigation and footer sections.

Author: mchav

index.html

@@ -25,6 +25,7 @@ <h1 id="logo"><a href="index.html">data<span>Haskell</span></a></h1>
 				<!-- Header -->
 				<ul>
 					<li class="current"><a href="index.html">Home</a></li>
+					<li class=""><a href="https://datahaskell.org/blog.html">Blog</a></li>
 					<li class=""><a href="https://datahaskell.org/docs">Docs</a></li>
 					<li class=""><a href="https://www.datahaskell.org/docs/community/roadmap.html">Roadmap</a></li>
 					<li class=""><a href="https://github.com/DataHaskell">Github</a></li>
@@ -251,4 +252,5 @@ <h2>Ready to revolutionize <strong>data science</strong>?</h2>
 
 </body>
 
-</html>
+
+</html>