GitLab

* [doc] fix title of mixed precision

* [doc]update document of zero with chunk

* [doc] update document of zero with chunk, fix

* [doc] update document of zero with chunk, fix

* [doc] update document of zero with chunk, fix

* [doc] update document of zero with chunk, add doc test

* [doc] update document of zero with chunk, add doc test

* [doc] update document of zero with chunk, fix installation

* [doc] update document of zero with chunk, fix zero with chunk doc

* [doc] update document of zero with chunk, fix zero with chunk doc

* [doc]update gradient accumulation

* [doc]update gradient accumulation

* [doc]update gradient accumulation

* [doc]update gradient accumulation

* [doc]update gradient accumulation, fix

* [doc]update gradient accumulation, fix

* [doc]update gradient accumulation, fix

* [doc]update gradient accumulation, add sidebars

* [doc]update gradient accumulation, fix

* [doc]update gradient accumulation, fix

* [doc]update gradient accumulation, fix

* [doc]update gradient accumulation, resolve comments

* [doc]update gradient accumulation, resolve comments

* fix