## Motivation

Add Synapse dataset in MMSegmentation.
Old PR: https://github.com/open-mmlab/mmsegmentation/pull/2372.

* [Doc]Translate the 1_config.md and modify a wrong statement in 1_config.md

* Translate the 1_config.md and modify a wrong statement in 1_config.md

* Modify some expressions

* Apply suggestions from code review

* Update config documentation

* add demos

* update examples

* update links

* refactor inference doc

* introduce segdatasample

* add vis example

* fix

* Update docs/en/user_guides/3_inference.md

* update link

Co-authored-by: Miao Zheng <76149310+MeowZheng@users.noreply.github.com>

* draft

* refine structure

* fix typo

* rename single gpu title and redefine --resume

* update introduction

* add notes to load_from

* [WIP] LIP dataset

* wip

* keep473

* lip dataset prepare

* add ut and test data

* Upgrade pre commit hooks

* fix lint

* draft

* refine structure

* fix typo

* rename single gpu title and redefine --resume

* update introduction

* add notes to load_from

* [Doc] Update Data Preparation and Visualization doc

* upload visualization figure example

* fix

* fix

* delete demo image

* remove segvisualizer

* fix

* fix

* fix

* refactor inference doc

* introduce segdatasample

* add vis example

* fix

* Update docs/en/user_guides/3_inference.md

* update link

Co-authored-by: Miao Zheng <76149310+MeowZheng@users.noreply.github.com>

* Update config documentation

* add demos

* update examples

* update links

* [Fix] README for mmseg 1.x

* typo

* link and refine

* [WIP] Refine documentation

* get started done

* config refine

* train_test

* refine user guides

* add contribution

* add contribution

* refine visualization

* advanced tutorial

* advanced guides

* tricks

* refine zh doc

* refactor changelog

* inference, train_test tutorial

* fix

* add --work-dir

* config tutorial

* update config name convention

* minor change

* rewrite name

* modify scripts dirname

* update links

* [Doc] MMSeg 1.x Documentation

* revise index