add trove classifier for py38

[ju-sh]

Description

Add trove classifier for Python3.8

Add trove classifier for Python3.8. Thought it was too small a change to be creating an issue.

As an aside, can't we open the files, read its contents, assign it to a variable and use that variable in the long_description argument to setup() in setup.py instead of opening it then and there?

Related Issue

Checklist:

• [x] My code follows the code style of this project.
• [] My change requires a change to the documentation in the README file.
• [] I have updated the documentation accordingly.
• [] I have added an entry in CHANGELOG.md.
• [] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[coveralls]

Pull Request Test Coverage Report for Build 762

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-1.0%) to 99.005%

---

Totals
Change from base Build 761:	-1.0%
Covered Lines:	597
Relevant Lines:	603

---

💛 - Coveralls

[jendrikseipp]

Thanks!

As an aside, can't we open the files, read its contents, assign it to a variable and use that variable in the long_description argument to setup() in setup.py instead of opening it then and there?

Yes, I guess we could. Feel free to make the change.