Example kramdown command line to apply syntax highlighting requires
kramdown latest. Command is slightly different for earlier versions.
modified: doc/README
Change-Id: Icda1197436b5c5ed936ceff53c1dc51aa4ce409b
... as they became unnecessary when upstream (kramdown)
implemented LQ feature request:
17625c8082
Also updated (and simplified) syntax-highlighting instructions.
modified: doc/README
modified: doc/webp-lossless-bitstream-spec.txt
Change-Id: I6f02b0d0a69a4d1d96cb0f771936cbe9e2e6bbec