Add Quarto presentation documentation and examples

[Copilot]

typeR already supports Quarto presentations via typeRun()'s existing .qmd file handling, but this wasn't documented or demonstrated. This PR makes the capability discoverable.

Changes

• Examples (inst/examples/)

  • demo-presentation.qmd - Full reveal.js presentation with data analysis, plots, and modeling
  • simple-presentation.qmd - Minimal 3-slide quickstart
  • Usage guide with presentation tips

• Vignette (vignettes/quarto-presentations.Rmd)

  • Complete guide covering reveal.js, PowerPoint, Beamer formats
  • Best practices for typing speed, output control, ESC pause/resume
  • Workflow examples and troubleshooting

• README - Added Quarto presentations section with usage example

• Tests (tests/manual/) - Validation suite for example files

Usage

library(typeR)

# Use included example
demo <- system.file("examples/demo-presentation.qmd", package = "typeR")
typeRun(demo, delay = 0.08, max_print = 5)

# Or with your own presentation
typeRun("talk.qmd", delay = 0.10, jitter = 0.03)

Technical Notes

Zero code changes required. typeRun() line 86 already handles .qmd:

is_quarto <- tolower(tools::file_ext(file)) %in% c("qmd", "rmd")

Manual testing recommended - R not available in CI.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Can this be implemented into Quarto presentations?</issue_title>
<issue_description>Hi! This is a really great package. I tried it out and it seems to work really nicely. Just wondering if there's any plans to implement this into Quarto presentations or similar? I can see that being extremely useful. But thanks anyway for a great package!</issue_description>

<agent_instructions>Fix [ISSUE] by [SOLUTION].

Requirements:

• Explain all changes in PR description
• Add code comments for clarity
• Provide testing steps
• DO NOT MERGE - requires manual review and approval

Include: before/after comparison, potential side effects, and validation checklist.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Can this be implemented into Quarto presentations? #1

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