Docs fix array/pointer/slice type coercion section

[BuzzwordChief]

The type coercion removed in #265 ([X]T => [] const T) has to be removed from the docs.

[ghost]

Actually the example code is correct but the test names are wrong.

Heading: Type Coercion: Arrays and Pointers -> Type Coercion: Slices and Pointers to Arrays ?

Comment mentioning issue 265 should be amended.

Test name: [N]T to []const T -> *const [N]T to []const T

Test name: [N]T to E![]const T -> *const [N]T to E![]const T

Test name: [N]T to ?[]const T -> *const [N]T to ?[]const T

This section could also be fleshed out to talk about sentinel terminated arrays explicitly. But the coercion section is already pretty gigantic...

[BuzzwordChief]

You are absolutly right! I converted slices/arrays/pointers all night and in my opinion this deserves a few more examples (espcially bc arrays are so differeny to C's). I will fix that up and write one test converting string literals to include sentinel terminated * conversions.