Documentation improvements

[OliverBalfour]

• Add example files for each export format to an examples subfolder
• Add instructions for how to write for each export type
  • Slideshow formats use --- (ie <hr>) to demarcate slides
  • You can use ---\ntitle: my title\n--- YAML frontmatter
• Explain what sort of new workflows this plugin enables
  • Writing books - just use ![[Chapter1]] ![[Chapter2]] ... and export as PDF/ePub/Word/etc
  • Fancy presentations - explain Reveal.js
  • Drafting LaTeX documents and eBooks
  • Making static websites (like Obsidian publish, but you can put them on a USB drive or use GitHub Pages/Jekyll)
  • Writing assignments in Obsidian and exporting them to whatever format you need them in
  • Explain obscure export types and why they're worth using
  • Writing Word documents without Word
  • Ultimately, it lets you do more inside Obsidian (centralised PKMS) and in a simpler interface, and still interface with the outside world
• Update the list of caveats and the screenshot
• Mention you can put tags in YAML frontmatter to hide them in the output
• Mention Plugin doesn't recognize pandoc or MacTeX on mac #15 and the fix for it if it's just a PATH configuration issue