Fixed a typo.

* Basic support for C4 model primitives.

* Use the "rect" shape for nodes

With the record shape we used before, graphviz would trip over
edges that set constraint=False.

* Adopt C4 terminology: Rename Dependency -> Relationship

* Adopt C4 terminology: Rename type -> technology

* Extract a shared C4Node

This makes the code more DRY, but also allows to add company-
specific extensions more easily. One need we have is to slightly
adapt the terminology. At Spotify, we happen to call `Container`
a `Component` for example. This is now easier to implement on top
of the shared `C4Node`.

* Add "C4" shield to the README

* Document how to produce a C4 diagram

* Add Python 3.9 to badges

* Change Python version to >= 3.6

* [Openstack] Add resources + set the provider (#15)

* [Openstack] autogen + Fixes

* [Openstacj] Fix names (#15)

* [Openstack] Fix comment

* Update readme

One proposition of change for the presentation, listing 6 cloud providers is already out of date as new cloud providers was added and will be added in future. 
I put a more generic sentence. So no need to update the readme each time a new provider is added.
I think that there's no need to list all providers as the badges just above list them.
I also added saas and programming I tried to be generic so here also no need to update the readme when adding new resources. 

I hope I didn't misspell words and my grammar is correct.

* Fix space

Closes #49

* Apply minor grammar changes to README

* Minor grammar change in text for website

* Add Icon set for Oracle Cloud Services. Update scripts to handle the new provider

* feat: add alibaba cloud resources

* chore: delete unused script

* bump: up to version 0.4.0

* docs: add alibaba cloud

* chore: make a publish script executable

* docs: update menus for alibaba cloud

* Code cleanup per pull request feedback

* Add Oracle cloud to website and command line to generate the classes

* Add missing module script for OCI provider

Co-authored-by: Prodesire <Prodesire@yeah.net>
Co-authored-by: MinJae Kwon <mingrammer@gmail.com>