diff --git a/2019-02-04_Stephan_Porada_Masterthesis_semi.pdf b/2019-02-04_Stephan_Porada_Masterthesis_semi.pdf
new file mode 100755
index 0000000..255fc3c
Binary files /dev/null and b/2019-02-04_Stephan_Porada_Masterthesis_semi.pdf differ
diff --git a/README.md b/README.md
index 4ce0dcd..07d1ea8 100755
--- a/README.md
+++ b/README.md
@@ -14,8 +14,8 @@ The actual data can be found here: https://gitlab.ub.uni-bielefeld.de/sporada/bu
 
 ## Systemrequirements
 
-*  docker 18.09.1-ce
-*  docker-compose 1.23.2
+*  docker 18.09.1-ce+
+*  docker-compose 1.23.2+
 *  unix-like OS
 
 ## Install requirements
diff --git a/app/blog/templates/blog/home.html b/app/blog/templates/blog/home.html
index d4867b9..708aab0 100755
--- a/app/blog/templates/blog/home.html
+++ b/app/blog/templates/blog/home.html
@@ -7,7 +7,9 @@ app.-->
 
 {% block content %}
 <div class="parallax-container">
-    <div class="parallax"><img src="{% static "/blog/images/4116197.jpg" %}"></div>
+    <div class="parallax">
+        <img src="{% static "/blog/images/4116197.jpg" %}">
+    </div>
     <div class="section white hide-on-large-only">
         <div class="row container">
             <ul class="collection">
@@ -89,6 +91,9 @@ app.-->
     </div>
 </div>
 <div class="parallax-container">
+    <div class="parallax">
+        <img src="{% static "/blog/images/4094966.jpg" %}">
+    </div>
     <div class="section white">
         <div class="row">
             <div class="container grey-text text-darken-3 lighten-3">
@@ -106,9 +111,11 @@ app.-->
         </div>
         </div>
     </div>
-    <div class="parallax"><img src="{% static "/blog/images/4116197.jpg" %}"></div>
 </div>
 <div class="parallax-container">
+    <div class="parallax">
+        <img src="{% static "/blog/images/4116197.jpg" %}">
+    </div>
     <div class="section white">
         <div class="row">
             <div class="container grey-text text-darken-3 lighten-3">
@@ -126,10 +133,12 @@ app.-->
             Metadaten gibt es auf der <a href="{% url "about-page" %}">Info-Seite</a>.</p>
             </div>
     </div>
-    <div class="parallax"><img src="{% static "/blog/images/4116197.jpg" %}"></div>
 </div>
 </div>
 <div class="parallax-container">
+    <div class="parallax">
+        <img src="{% static "/blog/images/4116197.jpg" %}">
+    </div>
     <div class="section white">
         <div class="row">
             <div class="container grey-text text-darken-3 lighten-3">
@@ -160,10 +169,11 @@ app.-->
                 </div>
             </div>
         </div>
-        <div class="parallax"><img src="{% static "/blog/images/4116197.jpg" %}"></div>
     </div>
 </div>
 <div class="parallax-container">
-    <div class="parallax"><img src="{% static "/blog/images/4116197.jpg" %}"></div>
+    <div class="parallax">
+        <img src="{% static "/blog/images/4094966.jpg" %}">
+    </div>
 </div>
 {% endblock content %}
diff --git a/app/blog/urls.py b/app/blog/urls.py
index 63b831b..279f2f4 100755
--- a/app/blog/urls.py
+++ b/app/blog/urls.py
@@ -9,5 +9,5 @@ urlpatterns = [
     path("blog/", views.blog, name="blog"),
     path("about/", views.about, name="about-page"),
     path("", views.home, name="home"),
-    path("impressum/", views.impressum, name="impressum"),
+    path("impressum/", views.impressum, name="impressum")
 ]
diff --git a/app/secrets_example.json b/app/secrets_example.json
old mode 100644
new mode 100755
index 6ac0e48..d6594aa
--- a/app/secrets_example.json
+++ b/app/secrets_example.json
@@ -1,5 +1,7 @@
 {
+    "_comment": "DO not use these values in production! This is an example for development!",
     "SECRET_KEY": "=7n(1!he%todz-)jo))$upf0(vor9v9ke5rn&fli%6l562!_=0",
-    "DB_PASSWORD": "v3ry53cr3t"
-    "DB_USER": "bundesdata_app_user"
+    "DB_PASSWORD": "v3ry53cr3t",
+    "DB_USER": "bundesdata_app_user",
+    "DB_NAME": "bundesdata_db"
 }