appended by Github Actions

Author: github-actions[bot]

README.md

@@ -15,7 +15,6 @@
 
 <!-- START doctoc generated TOC please keep comment here to allow auto update -->
 <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
-
 **Table of Contents**
 
 - [Description](#description)
@@ -29,6 +28,22 @@
   - [Decryption](#decryption)
     - [Linux](#linux-1)
   - [configuration: dotenv or env](#configuration-dotenv-or-env)
+  - [Test / Performance](#test--performance)
+- [Installation](#installation)
+  - [Linux](#linux-2)
+  - [MacOS](#macos)
+  - [Windows](#windows)
+- [Development](#development)
+  - [Dependencies](#dependencies)
+    - [CMake](#cmake)
+    - [QT](#qt)
+    - [Qt-AES](#qt-aes)
+    - [dotenv-cpp](#dotenv-cpp)
+  - [folder structure](#folder-structure)
+- [Authors and License](#authors-and-license)
+  - [MIT License](#mit-license)
+  - [Authors](#authors)
+    - [Code Contributors](#code-contributors)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->