Doctests fail with new Black version.

[henrifroese]

As we could see in #169 and #170 , with the new release of black three days ago, many of our doctests fail. We opened an issue here at Black's Github. Currently, when we want to push something new to Texthero, Travis CI will fail. Current hotfix is to use the last version before the release by setting in .travis.yml: - pip3 install black==19.10b0 and in setup.cfg: black==19.10b0.

[jbesomi]

@henrifroese thanks! Can I close this issue?

[henrifroese]

yes should be good