README.md

@@ -13,6 +13,7 @@
 ## Table of Contents
 <!-- TABLE OF CONTENTS -->
 <ol>
+   <li><a href="#Features">Features</a></li>
    <li>
      <a href="#getting-started">Getting Started</a>
      <ul>
@@ -26,6 +27,52 @@
    <li><a href="#contact">Contact</a></li>
 </ol>
 
+## Features
+<!-- FEATURE OVERVIEW -->
+- Expandle
+- Application base
+    - Standardized application classes
+    - Application object builder
+    - Application extension classes
+    - Startup classes
+    - Startup extension classes
+- Configuration
+    - Configure via object mapped JSON
+    - Console argument handling
+- Console class for in and output
+    - Banner
+    - Spinner
+    - Options (menu)
+    - Table
+    - Write
+    - Write_at
+    - Write_line
+    - Write_line_at
+- Dependency injection
+    - Service lifetimes: singleton, scoped and transient
+- Providing of application environment
+    - Environment (development, staging, testing, production)
+    - Appname
+    - Customer
+    - Hostname
+    - Runtime directory
+    - Working directory
+- Logging
+    - Standardized logger
+    - Log-level (FATAL, ERROR, WARN, INFO, DEBUG & TRACE)
+- Mail handling
+    - Send mails
+- Pipe classes
+    - Convert input
+- Utils
+    - Credential manager
+        - Encryption via BASE64
+    - PIP wrapper class based on subprocess
+        - Run pip commands
+    - String converter to different variants
+        - to_lower_case
+        - to_camel_case
+        - ...
 
 <!-- GETTING STARTED -->
 ## Getting Started