Clarify how CharUnicodeInfo data is sourced (#5100)

Author: GrabYourPitchforks

includes/unicode-categories.md

@@ -1,4 +1,4 @@
-.NET maintains its own table of characters and their corresponding categories, which ensures that a specific version of a .NET implementation running on different platforms returns identical character category information. On .NET 5 running on Linux, macOS, or Windows 19H1 or later, and .NET Core running on Linux and macOS, character category information is provided by [International Components for Unicode](http://site.icu-project.org/) libraries.
+.NET maintains its own table of characters and their corresponding categories, which ensures that a specific version of a .NET implementation running on different platforms returns identical character category information. On all .NET versions and across all OS platforms, character category information is provided by the [Unicode Character Database](https://www.unicode.org/ucd/).
 
 The following table lists .NET versions and the versions of the Unicode Standard on which their character categories are based.
 
@@ -9,9 +9,11 @@ The following table lists .NET versions and the versions of the Unicode Standard
 |.NET Framework 3.5|[The Unicode Standard, Version 5.0.0](https://www.unicode.org/versions/Unicode5.0.0)|
 |.NET Framework 4|[The Unicode Standard, Version 5.0.0](https://www.unicode.org/versions/Unicode5.0.0)|
 |.NET Framework 4.5|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
-|.NET Framework 4.51|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
-|.NET Framework 4.52|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
+|.NET Framework 4.5.1|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
+|.NET Framework 4.5.2|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
 |.NET Framework 4.6|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
-|.NET Framework 4.61|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
+|.NET Framework 4.6.1|[The Unicode Standard, Version 6.3.0](https://www.unicode.org/versions/Unicode6.3.0/)|
 |.NET Framework 4.6.2 and later versions|[The Unicode Standard, Version 8.0.0](https://www.unicode.org/versions/Unicode8.0.0/)|
-|.NET Core (all versions) and .NET 5+|[The Unicode Standard, Version 8.0.0](https://www.unicode.org/versions/Unicode8.0.0/)|
+|.NET Core 2.1|[The Unicode Standard, Version 8.0.0](https://www.unicode.org/versions/Unicode8.0.0/)|
+|.NET Core 3.1|[The Unicode Standard, Version 11.0.0](https://www.unicode.org/versions/Unicode11.0.0/)|
+|.NET 5|[The Unicode Standard, Version 13.0.0](https://www.unicode.org/versions/Unicode13.0.0/)|