Upgrade to v2.0.0-rc3

Co-authored-by: Dan Forbes <dan@danforbes.dev>

* use docker to setup a local dev chain.

* install docker link

* update command

* Update README.md

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* more commands to start or check a node.

* purge chain in docker

* update README

Co-authored-by: Kaichao Sun <kaichaosuna@gmail.com>
Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* use docker to setup a local dev chain.

* install docker link

* update command

* Update README.md

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

* more commands to start or check a node.

* purge chain in docker

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

Closes #35

Thanks to @brenzi for the work he did on #36 I copied a lot of it 

* alpha.6 to github

* fix format

Update to alpha.6

Delete outdated build.rs

* Run release script

* Change dependencies to crates.io

Update node template to alpha.3

Added readme for generating your own substrate node template

Update to `40a16ef`

Update to `d1cd01c74`

In order to allow people to clone this template, GitHub requires all files be less than 10 mb.

This reverts commit 5cd3d42a.

This reverts commit cd271e09.