Typo

[jgarte]

They are thread-safe. Since they don't mutate global state, they be used in several computations running in parallel without interfering with each other.

Just collecting/documenting this typo I found here before I or someone else opens a PR.

[Magnetuz]

On the src/Tutorial/DataTypes/GenericDataTypes.md, there is a typo on lanugage instead of language.