docs(guide): adjust styles of the guides

doc/guide.css

@@ -1,2 +1,24 @@
 @import url('../rustdoc.css');
 @import url('../main.css');
+
+h1 {
+    margin-top: 50px;
+}
+
+h2 {
+    color: #555;
+    margin-top: 30px;
+}
+
+p {
+    margin-bottom: 1.2em;
+}
+
+p a, #toc a {
+    color: #3873AD;
+}
+
+p a:hover, #toc a:hover {
+    text-decoration: underline;
+}
+

doc/guide/index.md

@@ -0,0 +1,5 @@
+% Guides
+
+Hello! Just getting started? Great! Here, take a look at a guide:
+
+- [Server Guide](./server.html)

doc/guide/server.md

@@ -48,7 +48,8 @@ There is quite a few concepts here, so let's tackle them one by one.
 ## Handler
 
 The [`Handler`][Handler] is how you define what should happen during the lifetime
-of an HTTP message.
+of an HTTP message. We've implemented it for the `Text`, defining what should
+happen at each event during an HTTP message.
 
 ## Next