update the README

[renatobenks]

as the own README shows up, the instructions topic at README it's missing updates to have a better match understanding so far, especially because it needs to be translated to English.

Topics

• update the topic title as Classes instead
• add the missing related covered topics on the teaching classes

Requirements

• update the requirements proposal pitch to be a better match as text
• translate the requirements proposal pitch

Instructions

• update the topic title as Running instead
• remove instructions that it doesn't make more sense
• translate the kept instructions to English