adding link to ctakes image and moving history tab to wiki

_layouts/default.html

diff --git a/_layouts/default.html b/_layouts/default.html
index caea221..99ebc70 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -11,7 +11,7 @@
 <header>
     <div class="container">
         <div class="logo">
-            <img src="{{ '/assets/images/ctakes_logo.jpg' | relative_url }}" alt="Logo">
+            <a href="https://apache.github.io/ctakes-website/"><img src="{{ '/assets/images/ctakes_logo.jpg' | relative_url }}" alt="Logo"></a>
         </div>
         <div class="support-image">
             <img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache">
@@ -20,7 +20,6 @@
     <h1 class="site-title">{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}</h1>
     <nav>
         <ul class="navigation">
-            <li><a href="https://apache.github.io/ctakes-website/">History</a></li>
             <li><a href="https://apache.github.io/ctakes-website/intro/">Introduction</a></li>
             <li><a href="https://github.com/apache/ctakes/wiki" target="_blank">Ctakes Wiki</a></li>
             <li><a href="https://apache.github.io/ctakes-website/downloads">Downloads</a></li>

assets/css/style.css

diff --git a/assets/css/style.css b/assets/css/style.css
index 9464088..d05b067 100644
--- a/assets/css/style.css
+++ b/assets/css/style.css
@@ -47,6 +47,7 @@
   justify-content: center;
   list-style: none;
   padding: 0;
+  margin-top: auto;
 }