fixed issue with categories

_posts/2014-12-29-kuerbissuppe-mit-hokkaido-kuerbis.md

@@ -2,7 +2,7 @@
 layout:     recipe
 title:      "Kürbissuppe mit Hokkaido-Kürbis"
 date:       2014-12-29 21:00:00
-categories: ["Suppe", "Kochen", "Kuerbis"]
+categories: ["Suppe", "Kochen", "Kürbis"]
 thumbnail:  "/images/2014-12-29-kuerbissuppe.thumb.jpg"
 image:      "/images/2014-12-29-kuerbissuppe.jpg"
 source:     "http://www.winnegirl.de/kochrezepte/rezept-kuerbissuppe-mit-hokaido-kuerbis.html"

_posts/2015-12-17-kuerbislasagne.md

@@ -2,7 +2,7 @@
 layout:     recipe
 title:      "Kürbislasagne"
 date:       2015-12-17 12:09:00
-categories: ["Kochen", "Kuerbis"]
+categories: ["Kochen", "Kürbis"]
 thumbnail:  "/images/2015-12-17-kuerbislasagne.thumb.jpg"
 image:      "/images/2015-12-17-kuerbislasagne.jpg"
 source:     "http://rezepte.m-weymann.de/recipe/view/9"

_posts/2016-10-16-gefuellter-kuerbis.md

@@ -2,7 +2,7 @@
 layout:     recipe
 title:      "Gefüllter Kürbis"
 date:       2016-10-16 13:00:00
-categories: ["Kochen","Kuerbis"]
+categories: ["Kochen","Kürbis"]
 thumbnail:  "/images/2016-10-16-gefuellter-kuerbis.thumb.jpg"
 image:      "/images/2016-10-16-gefuellter-kuerbis.jpg"
 source:     "http://www.chefkoch.de/rezepte/112611047221560/Gefuellter-Hokkaido-Kuerbis.html"

index.html

@@ -22,7 +22,7 @@ title: thomasbas Rezeptesammlung
     </a>
     <div class="media-body">
       <h2 class="media-heading"><a href="{{ post.url }}">{{ post.title }}</a></h2>
-        <p class="meta">Gepostet am {{ post.date | localize: "%-d. %B %Y" }} in: {% for category in post.categories %}<a class="cat-link" href="/categories/{{ category }}">{{ category }}</a> {% endfor %}</p>
+        <p class="meta">Gepostet am {{ post.date | localize: "%-d. %B %Y" }} in: {% for category in post.categories %}<a class="cat-link" href="/categories/{{ category | downcase }}">{{ category }}</a> {% endfor %}</p>
     </div>
   </div>
   <!-- post ende -->