Update README

README.md

@@ -14,8 +14,8 @@ A `Unicolour` encapsulates a single colour and its representation across differe
 - CIE XYZ
 - CIE LAB
 
-Unicolour uses sRGB as the default RGB model and D65 (2° observer) as the default illuminant of the XYZ colour space.
-These can be overridden using the `Configuration` parameter.
+Unicolour uses sRGB as the default RGB model and standard illuminant D65 (2° observer) as the default white point of the XYZ colour space.
+These [can be overridden](#-advanced-configuration-) using the `Configuration` parameter.
 
 This library was initially written for personal projects since existing libraries had complex APIs or missing features.
 The goal of this library is to be intuitive and easy to use; performance is not a priority.
@@ -25,7 +25,7 @@ More functionality will be added over time.
 Targets .NET Standard 2.0 for use in .NET 5.0+, .NET Core 2.0+ and .NET Framework 4.6.1+ applications.
 
 ## How to use 🎨
-1. Install the package from [NuGet](https://www.nuget.org/packages/Wacton.Unicolour/) 
+1. Install the package from [NuGet](https://www.nuget.org/packages/Wacton.Unicolour/)
 ```
 dotnet add package Wacton.Unicolour
 ```
@@ -60,9 +60,7 @@ var contrast = unicolour1.Contrast(unicolour2);
 var difference = unicolour1.DeltaE76(unicolour2);
 ```
 
-<details>
-<summary><strong>Advanced configuration 💡</strong></summary>
-
+## Advanced configuration 💡
 A `Configuration` parameter can be used to change the RGB model (e.g. Adobe RGB, wide-gamut RGB)
 and the white point of the XYZ colour space (e.g. D50 reference white used by ICC profiles).
 
@@ -82,8 +80,6 @@ var config = new Configuration(
 var unicolour = Unicolour.FromRgb(config, 255, 20, 147);
 ```
 
-</details>
-
 ---
 
 [Wacton.Unicolour](https://gitlab.com/Wacton/Unicolour) is licensed under the [MIT License](https://choosealicense.com/licenses/mit/), copyright © 2022 William Acton.