diff --git a/src/main/resources/gui/README.md b/src/main/resources/gui/README.md
index 7c3955f..40aad58 100644
--- a/src/main/resources/gui/README.md
+++ b/src/main/resources/gui/README.md
@@ -2,6 +2,8 @@
 
 [API usage](docs/api)
 
+[configurations](docs/configurations)
+
 # Server information
 View [validator configuration](/server/config) or <a href="/server/health" target="_blank">health information</a> 
 
diff --git a/src/main/resources/gui/docs/api.md b/src/main/resources/gui/docs/api.md
index dc84852..34d0c71 100644
--- a/src/main/resources/gui/docs/api.md
+++ b/src/main/resources/gui/docs/api.md
@@ -1,3 +1,4 @@
+# API Usage
 The validation service listens to `POST`-requests to any server uri. You need to supply the xml/object to validate in the post body. 
 The service expects a single plain input in the post body, e.g. `multipart/form-data` is not supported.
 
diff --git a/src/main/resources/gui/docs/configurations.md b/src/main/resources/gui/docs/configurations.md
new file mode 100644
index 0000000..3e8678d
--- /dev/null
+++ b/src/main/resources/gui/docs/configurations.md
@@ -0,0 +1,15 @@
+# Configurations
+
+The validator needs a scenario configuration for working properly. 
+
+Currently, there are two public third party validation configurations available.
+
+* Validation Configuration for [XRechnung](http://www.xoev.de/de/xrechnung):
+  * Source code is available on [GitHub](https://github.com/itplr-kosit/validator-configuration-xrechnung)
+  * [Releases](https://github.com/itplr-kosit/validator-configuration-xrechnung/releases) can also be downloaded
+* Validation Configuration for [XGewerbeanzeige](https://xgewerbeanzeige.de/)
+  * Source code is available on [GitHub](https://github.com/itplr-kosit/validator-configuration-xgewerbeanzeige)
+  * [Releases](https://github.com/itplr-kosit/validator-configuration-xgewerbeanzeige/releases) can also be downloaded
+  
+For creating custom configurations see [configaration documentation](https://github.com/itplr-kosit/validator/blob/master/docs/configurations.md)
+for details
\ No newline at end of file
diff --git a/src/main/resources/gui/index.html b/src/main/resources/gui/index.html
index 4919302..1eb48c4 100644
--- a/src/main/resources/gui/index.html
+++ b/src/main/resources/gui/index.html
@@ -3,36 +3,48 @@
 <head>
     <meta charset="UTF-8">
     <title>Validator</title>
-    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
-    <meta name="viewport" content="width=device-width,initial-scale=1">
-    <link rel="stylesheet" href="lib/vue.css">
+    <meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width,initial-scale=1" name="viewport">
+    <link href="lib/vue.css" rel="stylesheet">
+
+    <style>
+
+        #result {
+            border: 1pt solid black;
+            margin-top: 20px
+        }
+
+        #result:empty {
+            display: none;
+        }
+
+
+    </style>
 </head>
 <body>
 <script type="text/javascript">
 
 
+  var validate = function () {
+    const input = document.getElementById('file');
+    const output = document.getElementById('result');
 
-    var validate = function(){
-        const input = document.getElementById('file');
-        const data = input.files[0];
-        const output = document.getElementById('result')
+    var headers = new Headers();
+    headers.append('Content-Type', 'application/xml');
 
-        var myHeaders = new Headers();
-        myHeaders.append("Content-Type", "application/xml");
+    var requestOptions = {
+      method: 'POST',
+      headers: headers,
+      body: input.files[0],
+      redirect: 'follow',
+    };
 
-        var requestOptions = {
-            method: 'POST',
-            headers: myHeaders,
-            body: data,
-            redirect: 'follow'
-        };
-
-        fetch("http://localhost:8080", requestOptions)
-            .then(response => response.text())
-            .then(result => output.innerText = result)
-            .catch(error => output.innerText = result);
-        return false;
-    }
+    fetch('/', requestOptions)
+      .then(response => response.text())
+      .then(result => output.innerText = result)
+      .catch(error => output.innerText = result);
+    return false;
+  };
 
 
 </script>
diff --git a/src/main/resources/gui/lib/License b/src/main/resources/gui/lib/License
new file mode 100644
index 0000000..4a5b531
--- /dev/null
+++ b/src/main/resources/gui/lib/License
@@ -0,0 +1,23 @@
+Sources in this diretory are based on https://github.com/docsifyjs/docsify/
+
+MIT License
+
+Copyright (c) 2016 - present cinwell.li
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
