Make multi-language posts easier to read

For now a lot of people want to reach their audience speaking various languages. that causes creation of content in 2 languages simultaneously like here

https://steemit.com/introduceyourself/@curiosit/trust-me-i-am-an-architect-introduceyourself-eng-pl

or they create separate 2 posts what brings us to content duplication.

Best idea would be to allow author to prepare different langiage version for his post and display them accordingly to language visitor uses