Update Local Development docs to use Makefile (#105)

* Update Local Development docs to use Makefile

* Update Makefile per @athei

Co-authored-by: Alexander Theißen <alex.theissen@me.com>

Co-authored-by: Alexander Theißen <alex.theissen@me.com>

Backport paritytech/substrate#7014 (#81)

Upgrade to v2.0.0-rc6 (#75)

🔖 update image

Upgrade to v2.0.0-rc4 (#62)

* Upgrade to v2.0.0-rc4

* Better updates to README

Co-authored-by: Joshy Orndorff <JoshOrndorff@users.noreply.github.com>

Co-authored-by: Joshy Orndorff <JoshOrndorff@users.noreply.github.com>

Merge pull request #54 from substrate-developer-hub/v2.0.0-rc3

Upgrade to v2.0.0-rc3

Upgrade to Substrate v2.0.0-rc2

Update to v2.0.0-rc1 (#45)

Upgrade to Substrate v2.0.0-alpha.8 (#44)

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