Documentation should state `signed` instead of `unsigned` for `FheIntX`

[matthiasgeihs]

Was just going through the docs.rs of tfhe-rs and noticed that types FheIntX are described as unsigned integer type.
https://docs.rs/tfhe/0.4.1/tfhe/ (e.g., for FheInt8 it states "An unsigned integer type with8bits")

This should be signed integer type?

Here is the relevant code location:

tfhe-rs/tfhe/src/high_level_api/integers/types/static_.rs

Line 86 in fef6d18

#[doc = concat!("An unsigned integer type with", stringify!($num_bits), "bits")]

[IceTDrinker]

Hello @matthiasgeihs likely a typo/error with copy pasting some docstring code, we'll take a look, thanks for the report !