This is to avoid the following warning:
SyntaxWarning: invalid escape sequence '\m'

framunoz changed the title refactor: make the documentation of _get_loss_unbalanced as a raw string [MRG] refactor: make the documentation of _get_loss_unbalanced as a raw string

framunoz changed the title [MRG] refactor: make the documentation of _get_loss_unbalanced as a raw string [MRG] fix: make the documentation of _get_loss_unbalanced as a raw string

* fix: add backslash to fix the error in the documentation
* refactor: delete space
* Update RELEASES.md
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Co-authored-by: Francisco Muñoz <fmunoz@ug.uchile.cl>