[general][doc] rearanging the sections for documentation and added installation instruction
André is correct to raise this one.
There's this one extra
=at the end up and down for double-sided titles for the "Algorithms" title
Don't forget to add them. It was nightmare adding them on all beat.* packages when I started working on this
docpackage to make sure sphinx doesn't have any issue with the doc generation...
Thanks for letting me know.