Merge pull request #118 from FederatedAI/dev-2.2.0

Merge v2.2.0's  Updates

Merge pull request #97 from FederatedAI/feature-2.1.0-fix-doc

Fix document

Merge pull request #60 from FederatedAI/dev-2.0.0

Update 2.0.0

Merge pull request #33 from FederatedAI/develop-1.3

update version of doc

Merge pull request #16 from FederatedAI/feature-1.2.0-doc_builtin_models

update doc: add builtin models using guide

Merge pull request #2 from FederatedAI/develop-1.1.0

Develop 1.1.0