Generate libwebp Container Spec Docs from Text Source
=====================================================

HTML generation requires kramdown [1], easily installed as a
rubygem [2].  Rubygems installation should satisfy dependencies
automatically.

[1]: https://kramdown.gettalong.org/
[2]: https://rubygems.org/

HTML generation can then be done from the project root:

$ kramdown doc/webp-container-spec.txt --template doc/template.html > \
  doc/output/webp-container-spec.html

kramdown can optionally syntax highlight code blocks, using CodeRay [3],
a dependency of kramdown that rubygems will install automatically.  The
following will apply inline CSS styling; an external stylesheet is not
needed.

$ kramdown doc/webp-lossless-bitstream-spec.txt --template \
  doc/template.html --coderay-css style --coderay-line-numbers ' ' \
  --coderay-default-lang c > \
  doc/output/webp-lossless-bitstream-spec.html

Optimally, use kramdown 0.13.7 or newer if syntax highlighting desired.

[3]: https://github.com/rubychan/coderay