Incorrect spelling of Queriable trait name

[sologub]

The correct name would be Queryable.

[mfpiccolo]

It does look like Queryable is the preferred spelling. Google even gives a suggestion.

However, there are several references to Queriable as an acceptable alternate spelling.

[sologub]

I'd like to note that the Queryable name is used with a similar functionality in .NET LINQ, so the name difference may become a source of pain for .NET devs.
But I understand that this is a breaking change, so please feel free to just close this issue if you consider it unimportant.

[sgrif]

Yup, this appears to be correct. We can add a type alias as Queriable to ease migration. Feel free to open a PR renaming.