GitLab

* reorg tutorials and api docs

* fix

* update work with different backend section

* fix some warnings

* Update backend.rst

* Update index.rst
Co-authored-by: VoVAllen <VoVAllen@users.noreply.github.com>

Can you add a link for the download to this sentence: You can also `download <location?>` and run the different code examples...
As with other tutorial topics, it would be helpful to add your assumptions or information in the opening section about prerequisites.

* doc page for builtin functions; install from source doc

* upload rst

* update

* reorg the doc mainpage

* contribute guide

* improve capsule tutorial with jinyang

* fix wrong layout of second-level tutorial

* delete transformer

* minor fix

* jake's change

* refactor API doc; add markup link in tutorials

* fix readme

[Doc] Basic tutorials & two model tutorials