[fix] Convert the rest of configs from ymls (#346)

* chore(examples): convert the rest of configs from `ymls`

* style(examples): satisfy black

* feat(examples/sentiments): add config updating through cli

* refactor(examples): delete config ymls

* fix(ppo_hh): config reference

* chore(hh/readme): update for the new config selection

* refactor(trlx): update depreciation warning of implicit configs

* fix(ppo_hh): conversion errors

* style(examples): satisfy isort

* style(trlx): break a long line

Author: maxreciprocate

examples/hh/README.md

@@ -8,7 +8,7 @@ accelerate launch --num_processes 7 --config_file ../../configs/accelerate/zero2
 ```
 Or if you want to train a smaller model or start from a supervised checkpoint, you can use one of the [configs](./configs)
 ```sh
-CONFIG_PATH=configs/ppo_hh_125M.yml accelerate launch --num_processes 7 --config_file ../../configs/accelerate/zero2-bf16.yaml ppo_hh.py
+CONFIG_NAME=125M accelerate launch --num_processes 7 --config_file ../../configs/accelerate/zero2-bf16.yaml ppo_hh.py
 ```
 
 Already trained models are hosted on https://huggingface.co/reciprocate