Squashed 'src/remixlab/bias/' changes from 91aee9f..7f51c00

7f51c00 correct doc mispell

git-subtree-dir: src/remixlab/bias
git-subtree-split: 7f51c00bdca34729212c2b63d0eee24059385a78
Merge commit '8b5721d3bc6b4aabc84cf9d2e001d3466e6fbd5d'