Update readme: Fold the TLDR code example

README.md

@@ -1,17 +1,17 @@
 # ESC/POS for Kotlin Multiplatform
 
-<!-- TOC -->
+Basic ESC/POS command generator and device connection support for various connection types: Bluetooth, USB, TCP.
 
-* [ESC/POS for Kotlin Multiplatform](#escpos-for-kotlin-multiplatform)
-    * [Setup](#setup)
-    * [TLDR Android Bluetooth example](#tldr-android-bluetooth-example)
-    * [What is ESC/POS?](#what-is-escpos)
-    * [What does this library do?](#what-does-this-library-do)
-    * [Feature/Platform matrix](#featureplatform-matrix)
+This library is not a wrapper around established ESC/POS libraries, but rather a green field implementation.
 
 <!-- TOC -->
+* [ESC/POS for Kotlin Multiplatform](#escpos-for-kotlin-multiplatform)
+  * [Setup](#setup)
+  * [What is ESC/POS?](#what-is-escpos)
+  * [Feature/Platform matrix](#featureplatform-matrix)
+<!-- TOC -->
 
-#### Setup
+## Setup
 The library is available at Maven Central.
 
 ```kotlin
@@ -23,7 +23,8 @@ repositories {
 implementation("cz.multiplatform.escpos4k:escpos4k:0.3.0")
 ```
 
-#### TLDR Android Bluetooth example
+<details> 
+  <summary>TLDR Android Bluetooth example</summary>
 
 ```kotlin
 suspend fun awaitPrint(): MyError? {
@@ -82,29 +83,21 @@ fun mapToMyError(libraryError: PrintError): MyError {
 (1) Use the PrinterManager to open a Bluetooth connection
 (2) Print using the CommandBuilder
 ```
+</details>
 
-#### What is ESC/POS?
+## What is ESC/POS?
 
 ESC/POS is a set of printer commands developed by Epson for use in thermal printers.
-It has been adopted as a "standard" by virtually all receipt printer manufacturers across the globe.
+It has been adopted as a "standard" by virtually all thermal printer manufacturers across the globe.
 
 ESC/POS is similar in this regard to the QR code - QR codes
 were [invented by Denso Wave](https://en.wikipedia.org/wiki/QR_code)
 for use in their automotive manufacturing plants, but are now used just about everywhere.
 
-Similarly, most thermal printers - at least those intended for printing receipts and similar items -
-work with a subset of ESC/POS. The set of _actually supported_ ESC/POS commands varies among
-printer OEMs and printer models.
-
-#### What does this library do?
-
-This library aims to provide basic ESC/POS command generator as well as device connection support for
-various device connection types: Bluetooth, USB, TCP etc.
-
-Being a programming exercise first and foremost, this library purposefully handles as much work as possible in
-Common Kotlin. It is not a wrapper around established ESC/POS libraries, but rather a green field implementation.
+Most thermal printers work with a subset of ESC/POS. The set of _actually supported_ ESC/POS commands varies 
+among OEMs and printer models.
 
-#### Feature/Platform matrix
+## Feature/Platform matrix
 
 The following table summarizes connector implementation status on each platform.