Improve style in Part 2 marker.

[martinmoene]

Style/idiom changes.

[grzesiek-galezowski]

This is great, thank you for that!

One small clarification: when I wrote "First of them being objects composability", I meant it as one of the qualities, not as a topic. Now that I look at it, it's pretty much confusing.

I'd suggest to substitute this part for something like "The key quality that we will focus on is object composability".

What do you think?

[martinmoene]

The key quality that we will focus on is object composability. is what I expected it to mean ;-)