Changelog:
===========
- Typing: Fix typing for Schema.from_dict <marshmallow.schema.Schema.from_dict>
- Documentation: Various documentation cleanups, including more concise docs in the marshmallow.fields API reference
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
