Add sample code to readme to get started from existing project fix #44

[mrchrisadams]

• [ ] fix #(issue number)
• [ ] description of feature/fix
• [ ] tests added/passed
• [ ] add an entry to the next release

This PR adds further docs for taking an existing project, and downloading it, so you can add it to source control, or similar.

[codecov-io]

Codecov Report

Merging #45 into devel will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##            devel      #45   +/-   ##
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  Coverage   85.10%   85.10%           
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  Files          64       64           
  Lines        1745     1745           
  Branches      151      151           
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  Hits         1485     1485           
  Misses        228      228           
  Partials       32       32           

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[Midnighter]

I should add that @ilaif and I had been talking about using MkDocs instead of Sphinx for documentation. That would mean converting all restructured text documents, like README.rst to markdown.

In addition, I wanted to add mkdocstrings such that docstrings are automatically converted to reference documentation. (We already use Google-style docstrings in this project.)

[Midnighter]

The markdown documentation was mentioned in #15. Let's see if I can create a good starting point for that.

[Midnighter]

I have added docs in #57 and the docs are now online at https://structurizr-python.readthedocs.io/en/latest/ :tada: I'm closing this now but please don't be shy to add more documentation :wink: