TOC.

docs/engine-features.md

 # Aura Engine Features
 
-This page gives a more detailed overview of the Aura Engine features.
+This page gives a more detailed overview of the Aura Engine features and how to configure them.
+
+<!-- TOC -->
+
+- [Aura Engine Features](#aura-engine-features)
+    - [Input](#input)
+        - [Play audio from multiple sources](#play-audio-from-multiple-sources)
+        - [Dynamic switching of sources](#dynamic-switching-of-sources)
+    - [Output](#output)
+        - [Record output to filesystem](#record-output-to-filesystem)
+        - [Stream output to an Icecast Server](#stream-output-to-an-icecast-server)
+        - [Multichannel Line-out](#multichannel-line-out)
+    - [Blank Detenction / Silence Detecter](#blank-detenction--silence-detecter)
+    - [Auto Pilot a.k.a. Fallback Handling](#auto-pilot-aka-fallback-handling)
+    - [API Endpoints](#api-endpoints)
+    - [Web Applications](#web-applications)
+    - [Monitoring](#monitoring)
+        - [Send mails on errors and warnings](#send-mails-on-errors-and-warnings)
+        - [Engine Status Information](#engine-status-information)
+        - [Engine Heartbeat](#engine-heartbeat)
+    - [Read more](#read-more)
+
+<!-- /TOC -->
 
 ## Input
 
@@ -215,7 +237,7 @@ This heartbeat is sent continiously based on the configured `heartbeat_frequency
 # Server where heartbeat info is sent to
 heartbeat_server = "127.0.0.1"
 # Some UDP port
-heartbeat_port = 43334 
+heartbeat_port = 43334
 # Seconds how often the vitality of the Engine should be checked (0 = disabled)
 heartbeat_frequency = 1
 ```