Change `BloomConfig` docstring (#19336)
* change `BloomConfig` docstring
- slightly change the docstring of the `BloomConfig`
- Use correct default vocab size
- Use correct default `hidden_dim`, `n_head`
* Update src/transformers/models/bloom/configuration_bloom.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
* Update src/transformers/models/bloom/configuration_bloom.py
Co-authored-by: SaulLu <55560583+SaulLu@users.noreply.github.com>
* make style
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: SaulLu <55560583+SaulLu@users.noreply.github.com>
