Update README.md

README.md

@@ -11,16 +11,17 @@ Unicolour is a .NET library written in C# for working with colour:
 - Colour information
 - Colour gamut mapping
 
-🧭 [Overview](#-overview)<br/>
-⚡ [Quickstart](#-quickstart)<br/>
-🔦 [Features](#-features)<br/>
-🌈 [How to use](#-how-to-use)<br/>
-✨ [Examples](#-examples)<br/>
-💡 [Configuration](#-configuration)<br/>
-🔮 [Datasets](#-datasets)<br/>
-
 Targets [.NET Standard 2.0](https://docs.microsoft.com/en-us/dotnet/standard/net-standard?tabs=net-standard-2-0) for use in .NET 5.0+, .NET Core 2.0+ and .NET Framework 4.6.1+ applications.
 
+**Contents**
+1. 🧭 [Overview](#-overview)
+2. ⚡ [Quickstart](#-quickstart)
+3. 🔦 [Features](#-features)
+4. 🌈 [How to use](#-how-to-use)
+5. ✨ [Examples](#-examples)
+6. 💡 [Configuration](#-configuration)
+7. 🔮 [Datasets](#-datasets)
+
 ## 🧭 Overview
 A `Unicolour` encapsulates a single colour and its representation across different colour spaces.
 It supports: