* added sfttrainer and rmtrainer example scripts.
* added few lines in the documentation.
* moved notebooks.
* delete `examples/summarization`
* remove from docs as well
* refactor sentiment tuning
* more refactoring.
* updated docs for multi-adapter RL.
* add research projects folder
* more refactor
* refactor docs.
* refactor structure
* add correct scripts all over the place
* final touches
* final touches
* updated documentation from feedback.