Documentation mentions wrapper.sh, which doesn't exist anymore

[languitar]

The documentation currently states:

There is also an utility script in: >

    $RUNTIME/rplugin/python3/LanguageClient/wrapper.sh

This doesn't seem to exist anymore since migrating to rust.

[autozimu]

Moved to https://github.com/autozimu/LanguageClient-neovim/blob/next/tests/wrapper-server.sh