workflowr 1.7.1

This patch release includes improved documentation, bug fixes, and a reduction
in the number of Suggested dependencies.

Updated documentation

• Update single-page FAQ to explain how to remove navbar

• Update badge links (implemented by @wyq977 in #276)

• Explicitly label internal functions with roxygen2

• Build online docs via GitHub Actions and push to gh-pages

• Improve guidance on rendering a standalone HTML file in FAQ vignette
  (idea from @fkgruber in #283)

• Add the appropriate PKGNAME-package \alias to the package overview help file
  as per "Documenting packages" in Writing R Extensions

• Modernize CITATION. Replace citEntry() with bibentry(), replace
  personList() with c(), format as R code, and simplify.

Bug fixes

• Fix missing figure version table on Windows (implemented by @warmdev in #275)

• Use conditionMessage() to extract error message from callr subprocess
  r-lib/callr#228

• Remove warning from sprintf() in print.wflow_start() when git = FALSE

Dependencies

• Removed from Imports: xfun
• Removed from Suggests: covr, devtools, spelling
• Added to Suggests: sessioninfo