Incorrect Cobra install command in Cobra documentation

[balagrivine]

Under the install section in Cobra.dev documentation site, the installation command go get -u github.com/spf13/cobra/cobra provided is incorrect.

The current behavior when you try installing cobra using that command is this output. go: module github.com/spf13/cobra@upgrade found (v1.8.1), but does not contain package github.com/spf13/cobra/cobra

The correct installation command should be go get -u github.com/spf13/cobra which installs cobra v1.8.1 successfully

[balagrivine]

Skimming through the past issues, I've realized that the README is the one actively up-to-date rather than the documentation website, and the issue is well addressed. The install command provided in the README is go get -u github.com/spf13/cobra@latest which is the correct way to install the latest version (v1.8.1).

I just felt that it's good to address the disparity present in the docs website since it will be the first point of reference for may newcomers :)