Updated Available C# and .NET features (markdown)

Available-C#-and-.NET-features.md

@@ -119,12 +119,11 @@ inline initialisation of [auto-props](https://docs.microsoft.com/en-us/dotnet/cs
 [`Expression` trees](https://docs.microsoft.com/en-us/dotnet/csharp/expression-trees) | ✔️ | ✔️ | discouraged (what are these even for)
 [lambdas](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/lambda-expressions) | ✔️ | ✔️ | preferred over delegates
 LINQ's [query expression syntax](https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/concepts/linq/query-expression-syntax-for-standard-query-operators) | ✔️ | ✔️ | disallowed
-[anonymous types](https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/types/anonymous-types) | ✔️ | ✔️ | disallowed (use tuples)
+[anonymous classes](https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/types/anonymous-types) | ✔️ | ✔️ | disallowed (use tuples)
 [auto-props](https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/auto-implemented-properties) | ✔️ | ✔️ | encouraged
 ^ C# 3 ^ | 🔵 `net48` | 🟢 `ns2.0` | ---
 [anonymous delegates](https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/delegates/how-to-declare-instantiate-and-use-a-delegate) | ✔️ | ✔️ | disallowed
 ^ C# 2 ^ | 🔵 `net48` | 🟢 `ns2.0` | ---
 [`using` alias](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/using-directive#using-alias) | ✔️ | ✔️ | discouraged unless there's a conflict
-[anonymous classes](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/new-operator#instantiation-of-anonymous-types) | ✔️ | ✔️ | disallowed
 [delegate constructors](https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/delegates/how-to-declare-instantiate-and-use-a-delegate) | ✔️ | ✔️ | disallowed
 [`unsafe`](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/unsafe-code) (pointers etc.) | ✔️ | ✔️ | discouraged