Tutorial: rename korap to devlopment also internally

This has to be done in a separate second step because it's pretty error-prone.

Follow up to I05dbd6d938324151e5eb1cbe15a66790da13c63c

Change-Id: Ib0b7e546f2a9dd5c321516774cf95bab74c42962
diff --git a/dev/demo/tutorial.html b/dev/demo/tutorial.html
index 7c4a87f..70e76ae 100644
--- a/dev/demo/tutorial.html
+++ b/dev/demo/tutorial.html
@@ -13,7 +13,7 @@
 -->
 	<nav>
 	  <ul>
-	    <li><a href="/doc/korap" class="active">KorAP</a>
+	    <li><a href="/doc/development" class="active">KorAP</a>
 	      <ul>
 		<!-- Versionsnummer -->
 		<li><a href="/doc/kalamar">Kalamar</a></li>