Add mainpage (#549)

* More work on docs

docs/basics/actorsmenu.md

@@ -19,7 +19,7 @@ thwomps, bowser fire-breath, moles, hedgehogs, snowmen, crabs, etc (also, probab
 The object system is much more complex than actors and is not well documented.
 
 \htmlonly
-
+<br>
 <style>
 .pagebutton {
     display: inline-block;

docs/basics/basicsmenu.md

@@ -3,7 +3,7 @@
 \htmlonly
 
 Essential skills and concepts to help you get started with mk64 decomp.
-
+<br>
 <style>
 .pagebutton {
     display: inline-block;
@@ -116,7 +116,7 @@ p {
 <p>Become familiar with technical and low-level concepts.</p>
 
 <div class="pagebutton">
-<a class="pagea" href="basicconcepts.html">
+<a class="pagea" href="concepts.html">
 <div class="pagelink">
   <div class="pageimg"><img width=320 src="buttonimage.png" /></div>
   <div class="content">

docs/basics/courses.md

@@ -1,2 +1,3 @@
 \page courses Courses
-# Courses
+# Courses
+

docs/basics/coursesmenu.md

@@ -3,7 +3,7 @@
 \htmlonly
 
 How courses work in mk64
-
+<br>
 <style>
 .pagebutton {
     display: inline-block;
@@ -98,7 +98,23 @@ p {
 </a>
 </div>
 
+
+<div class="pagebutton">
+<a class="pagea" href="surfacetypes.html">
+<div class="pagelink">
+  <div class="pageimg"><img width=320 src="buttonimage.png" /></div>
+  <div class="content">
+    <div class="pageheading">Surface Types</div>
+    <div class="pagedescription">
+      <p>Surface types in mk64</p>
+    </div>
+  </div>
+</div>
+</a>
+</div>
+
 \endhtmlonly
 
 \subpage courses
+\subpage surfacetypes
 

docs/basics/surfacetypes.md

@@ -0,0 +1,2 @@
+\page surfacetypes Surface Types
+# Surface Types

docs/basics/test.md

@@ -1,3 +0,0 @@
-@page test
-# test
-sdfsfdds