some updates

docs/_includes/header.html

@@ -26,7 +26,7 @@ hr {
  <p id="HtmlIsTheWorstThingIHaveEverUsed">
    <a class="headerlink" href="{{site.url}}changelogs/">Changelogs</a>
    <a class="headerlink" href="{{site.url}}building">Building</a>
-   <a class="headerlink" href="{{site.url}}modchart">Modcharts</a>
+   <a class="headerlink" href="https://github.com/KadeDev/Kade-Engine/wiki/">Modchart Documentation</a>
    <a class="headerlink" href="{{site.url}}guides">Guides</a>
    <br>&nbsp;
    <hr>