Make blurb working in Python 3.5.

[serhiy-storchaka]

Currently there are two versions of blurb on PyPI:

• 1.0 can be installed on 3.5, but doesn't work since uses 3.6 syntax (f-strings).
• 1.0.1 uses 3.5 syntax, bat requires Python >= 3.6.

As result when you install blurb on 3.5, version 1.0 is installed, which doesn't work.

[Mariatta]

Will #158 fix it?

[mlouielu]

@Mariatta I think it will, it will also need to upload to PyPI, too.

[brettcannon]

I'll do a release sometime this week.

[brettcannon]

Pushed: https://pypi.org/project/blurb/1.0.1.post1/

[serhiy-storchaka]

Thank you @Mariatta and @brettcannon!