Revert sections.

README.md

 
-# 1. Aura Engine
+# Aura Engine
 
 <img src="https://gitlab.servus.at/autoradio/meta/-/raw/master/images/aura-engine.png" width="250" align="right" />
 
@@ -8,26 +8,26 @@ specifically build for the requirements of community radios.
 
 <!-- TOC -->
 
-- [1. Aura Engine](#1-aura-engine)
-    - [1.1. Features](#11-features)
-    - [1.2. Architecture](#12-architecture)
-    - [1.3. Requirements](#13-requirements)
-    - [1.4. Installation](#14-installation)
-        - [1.4.1. Install System Libraries](#141-install-system-libraries)
-        - [1.4.2. Install Engine](#142-install-engine)
-        - [1.4.3. Setup Database](#143-setup-database)
-        - [1.4.4. Configuration](#144-configuration)
-    - [1.5. Running Engine](#15-running-engine)
-        - [1.5.1. Development](#151-development)
-        - [1.5.2. Production](#152-production)
-            - [1.5.2.1. API Server](#1521-api-server)
-    - [1.6. Logging](#16-logging)
-    - [1.7. About](#17-about)
-    - [1.8. Resources](#18-resources)
+- [Aura Engine](#aura-engine)
+    - [Features](#features)
+    - [Architecture](#architecture)
+    - [Requirements](#requirements)
+    - [Installation](#installation)
+        - [Install System Libraries](#install-system-libraries)
+        - [Install Engine](#install-engine)
+        - [Setup Database](#setup-database)
+        - [Configuration](#configuration)
+    - [Running Engine](#running-engine)
+        - [Development](#development)
+        - [Production](#production)
+            - [API Server](#api-server)
+    - [Logging](#logging)
+    - [About](#about)
+    - [Resources](#resources)
 
 <!-- /TOC -->
 
-## 1.1. Features
+## Features
 
 - Play audio from multiple sources
 - Dynamic switching of sources
@@ -44,7 +44,7 @@ specifically build for the requirements of community radios.
 
 Read more on the [Engine Features](docs/engine-features.md) page.
 
-## 1.2. Architecture
+## Architecture
 
 AURA Engine as part of the AURA Radio Suite uses an modulear architecture
 based on a REST API. All external information is retrieved using JSON data-structures.
@@ -52,7 +52,7 @@ based on a REST API. All external information is retrieved using JSON data-struc
 To learn more, checkout the [Engine Developer Guide](docs/developer-guide.md) or visit
  the [Aura Meta](https://gitlab.servus.at/autoradio/meta) repository.
 
-## 1.3. Requirements
+## Requirements
 
 **Hardware Requirements:** This depends on how many audio sources and targets you are
  going to use, but for the most common scenarios any current hardware should be sufficient.
@@ -62,13 +62,13 @@ To learn more, checkout the [Engine Developer Guide](docs/developer-guide.md) or
 It is tested and coded on Debian Stretch and Ubuntu 18.0 with Python 3.6+.
 
 
-## 1.4. Installation
+## Installation
 
 ```bash
 git clone https://gitlab.servus.at/autoradio/engine
 ```
 
-### 1.4.1. Install System Libraries
+### Install System Libraries
 
 Aura Engine requires at least Node 13 and Python 3.7.
 
@@ -87,7 +87,7 @@ sudo apt install \
     liquidsoap-plugin-all
 ```
 
-### 1.4.2. Install Engine
+### Install Engine
 
 Development Environment:
 
@@ -101,7 +101,7 @@ Production Environment:
 sudo ./install.sh prod
 ```
 
-### 1.4.3. Setup Database
+### Setup Database
 
 ```bash
 mysql -u root -p
@@ -111,7 +111,7 @@ CREATE USER 'aura'@'localhost' IDENTIFIED BY 'secure-password';
 GRANT ALL PRIVILEGES ON aura_engine.* TO 'aura'@'localhost';  
 ```
 
-### 1.4.4. Configuration
+### Configuration
 
 Run
 
@@ -127,10 +127,10 @@ your time to carefully review those settings!
 
 Read more about detailed settings in the [Configuration Guide](docs/configuration-guide.md).
 
-## 1.5. Running Engine
+## Running Engine
 
 
-### 1.5.1. Development
+### Development
 
 While developing there is a simple convencience script `run.sh`
 to get you started. Call the engine's components in following order:
@@ -145,7 +145,7 @@ In development mode Engine uses the [Flask](https://palletsprojects.com/p/flask/
 This server should not be used in your production environment.
 
 
-### 1.5.2. Production
+### Production
 
 In production the process is slightly different to ensure the
 engine's components are always running i.e. restart themselves after some system
@@ -163,7 +163,7 @@ and on system boot run following:
   systemctl enable aura-lqs
 ```
 
-#### 1.5.2.1. API Server
+#### API Server
 
 For production Engine API uses the WSGI HTTP Server [`Gunicorn`](https://gunicorn.org/).
 
@@ -185,7 +185,7 @@ In case you want to reload whole supervisor service
     sudo service supervisor restart
 ```
 
-## 1.6. Logging
+## Logging
 
 All Engine logs for production can be found in `/var/log/aura/engine`
 
@@ -197,7 +197,7 @@ You can access the service logs using one of:
     journalctl -u aura-engine
 ```
 
-## 1.7. About
+## About
 
 <img src="https://gitlab.servus.at/autoradio/meta/-/raw/master/images/aura-logo.png" width="150" />
 
@@ -208,7 +208,7 @@ Aura Engine is the play-out engine of the Aura Radio Software Suite. Aura stands
 | [Steering](https://gitlab.servus.at/autoradio/pv)  | [Dashboard](https://gitlab.servus.at/autoradio/dashboard)  | [Tank](https://gitlab.servus.at/autoradio/tank)  | [Engine](https://gitlab.servus.at/autoradio/engine)  |
 
 
-## 1.8. Resources
+## Resources
 
 * **Python**: https://docs.python.org/
 * **Redis**: https://redis.io/