documentation

Summary

Revamped and got basic documentation up so folks can use the Python API.

What's Changed

• modify how I handle migration matrices by @connor-french in #18
• Add the spDemography class by @connor-french in #19
• Initialize the plot module by @connor-french in #26
• Update docs- mostly adding quickstart by @connor-french in #29
• update docs by @connor-french in #31
• Move docs to quartodocs by @connor-french in #32
• update index by @connor-french in #33
• Docs index by @connor-french in #34
• add macos 13 workflow by @connor-french in #39

New Contributors

• @connor-french made their first contribution in #18

Full Changelog: v0.0.3...v0.0.4