Revert "[`Docs`] Update and make improvements" (#5858)
* Revert "[`Docs`] Update and make improvements (#5819)"
This reverts commit c697f524761abd2314c030221a3ad2f7791eab4e.
* Update README.md
* Update memory.md
* Update basic_training.md
* Update write_own_pipeline.md
* Update fp16.md
* Update basic_training.md
* Update write_own_pipeline.md
* Update write_own_pipeline.md