The arguments types shorthand syntax is wrongly/awkwardly introduced

[dario-piotrowicz]

It is quite minor, anyways I've noticed that in the integers section (which comes after the hello-world one), the arguments types shorthand syntax is introduced/explained: https://github.com/quii/learn-go-with-tests/blob/e759bc10ba1c670778019d53eb18283165c50dc5/integers.md?plain=1#L61-L66

What I think is wrong is that the syntax was already used in the hello-world section (but not explained there): https://github.com/quii/learn-go-with-tests/blob/e759bc10ba1c670778019d53eb18283165c50dc5/hello-world.md?plain=1#L303

So the guide is initially using the syntax in the hello-world section without explaining it and it later introduces it.

I think that this could be improved by either:

• removing the shorthand from the hello-world code:

   -   func assertCorrectMessage(t testing.TB, got, want string) {
   +   func assertCorrectMessage(t testing.TB, got string, want string) {

• or keeping the shorthand in the hello-world code but then have the shorthand explanation there instead of having it in the integers section