Remove justified text style from docs

[zebapy]

I'm submitting a...

[ ] Regression 
[ ] Bug report
[ ] Feature request
[X] Documentation issue or request (new chapter/page)
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Text/paragraphs are justified

Expected behavior

Minimal reproduction of the problem with instructions

What is the motivation / use case for changing the behavior?

Justified text makes for a difficult reading experience and somewhat unpleasant how there can be such large gaps between some words. The justified alignment should be removed wholesale as I believe it goes beyond simple aesthetics and could have accessibility implications.

Environment

For Tooling issues:
- Node version: XX  
- Platform:  

Others:

[kamilmysliwiec]

Done