docs: update unsloth docs for multi turn integration

[cmunley1]

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A helpful guide on on how to craft a minimal bug report http://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports.

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Configs
NeMo Gym (e.g. via ng_dump_config) or RL training framework config files.

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[cmunley1]

this depends on TRL PR merge first

[cmunley1]

closing in favor of #640