diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7dd3df..f942e0a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# v1.0,1
+## 19/08/2017
+
+1. [](#new)
+    * Fix collection html tags
+    * Add available formats to README
+
 # v1.0.0
 ## 18/08/2017
 
diff --git a/README.md b/README.md
index 12dd8b6..d598fd5 100644
--- a/README.md
+++ b/README.md
@@ -48,3 +48,12 @@ This is a list for each shortcode.
    * `collection_class`: extra css classes for the main collection html tag.
    * All the parameters for **astrobin-image** are also supported to properly display child images.
    
+Available formats in astrobin API:
+ - duckduckgo
+ - duckduckgo_small
+ - gallery
+ - hd
+ - real
+ - regular
+ - thumb
+
diff --git a/templates/partials/astrobin-collection.html.twig b/templates/partials/astrobin-collection.html.twig
index 9456232..a3050ee 100644
--- a/templates/partials/astrobin-collection.html.twig
+++ b/templates/partials/astrobin-collection.html.twig
@@ -1,7 +1,7 @@
 <div class="astrobin astrobin-collection {{params['collection_class']}}">
-    <{{params['collection-title-tag']}} class="astrobin-collection-title">{{ collection.title() }}</{{params['collection_title_tag']}}>
+    <{{params['collection_title_tag']}} class="astrobin-collection-title">{{ collection.title() }}</{{params['collection_title_tag']}}>
     {% if collection.description() %}
-    <{{params['collection-description-tag']}} class="astrobin-collection-description">{{ collection.description() }}</{{params['collection_description_tag']}}>
+    <{{params['collection_description_tag']}} class="astrobin-collection-description">{{ collection.description() }}</{{params['collection_description_tag']}}>
     {% endif %}
     <section data-featherlight-gallery data-featherlight-filter=".astrobin-image">
     {% for image in collection.images() %}