* Added support for subscription
* Added pre-commit hooks for black and formatted changed files
* Checked with flake8
* Integrated changes from master.
Co-authored-by: Rob Blackbourn <rblackbourn@bhdgsystematic.com>
Co-authored-by: Rob Blackbourn <rtb@beast.jetblack.net>
* Revise documentation
- Add missing reference to `flask-graphql` in integrations
- align documentation for resolver arguments (use root for 1st argument
instead of self)
- explore use of `parent` instead of `root` for first argument
- clarify resolvers and object type documentation
- add documentation for Meta class options for ObjectType
- expand quickstart documentation for first time users
- streamline order of documentation for first time users (broad ->
specific)
- document resolver quirks
* explict imports from graphene
* rename doc refs for resolvers
* suggestions typos and graphene import
