Improvement on the official documentation

[pokoli (Sergi Almacellas Abellana)]

@ced

So he made his first MR using the online editor: Clarify the need to create the opportunity.py file in the tutorial (!986) · Merge requests · Tryton / Tryton · GitLab

And it seems this is now our default branch:

Which seems the same problem that we already reported to heptapod.

Emails on push integration send email for topics (#432) · Issues · heptapod /...

[awes7 (Austin Jay)]

Having trying to implement tryton, since 2018. I agree the documentation is lacking. I resorted to trying to read the code and putting it into Chatgpt for explanations.