Typo in readme

[JeffLiang2018]

"go get -u github.com/golang-jwt/jwt/v5" doesn't work.
Instead "go get -u github.com/golang-jwt/jwt" can work

[mfridman]

What error are you getting? I just tried this:

go get -u github.com/golang-jwt/jwt/v5@latest
go: added github.com/golang-jwt/jwt/v5 v5.0.0-rc.1

This should download the v5 release candidate 1.

Fwiw with module on v2 and up, you'll always want to go get and import with the suffix included.