diff --git a/README.md b/README.md
index d74e7b085..3e280de25 100644
--- a/README.md
+++ b/README.md
@@ -157,6 +157,7 @@ Multilanguage support is not given currently and not planned.
 
 [![Apprio Inc](https://github.com/wurstbrot/DevSecOps-MaturityModel/raw/master-old/assets/images/Apiiro_black_logo.png)](https://apiiro.com/)
 
+[![Heroku (hosting)](https://github.com/wurstbrot/DevSecOps-MaturityModel/raw/master-old/assets/images/sponsors/heroku.png)](https://www.heroku.com/open-source-credit-program)
 
 # Donations
 
diff --git a/nginx/default.conf b/nginx/default.conf
deleted file mode 100644
index fbb00eda1..000000000
--- a/nginx/default.conf
+++ /dev/null
@@ -1,22 +0,0 @@
-server {
-    listen       8080;
-    server_name  localhost;
-
-    location / {
-        root   /usr/share/nginx/html;
-        try_files $uri $uri/ /index.html =404;
-    }
-
-    #error_page  404              /404.html;
-
-    # redirect server error pages to the static page /50x.html
-    #
-    error_page   500 502 503 504  /50x.html;
-    location = /50x.html {
-        root   /usr/share/nginx/html;
-    }
-    autoindex off;
-    server_tokens off;
-    add_header Content-Security-Policy "default-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com https://fonts.gstatic.com;";
-    add_header X-Content-Type-Options nosniff;
-}
diff --git a/src/assets/images/sponsors/heroku.png b/src/assets/images/sponsors/heroku.png
new file mode 100644
index 000000000..54f67b3cc
Binary files /dev/null and b/src/assets/images/sponsors/heroku.png differ