update http links

- prefer https

- metadataworkinggroup.org/com seem to be offline; the web archive link
  was obtained from exiftool: https://exiftool.org/TagNames/MWG.html

- fix kramdown link, rubyforge has been gone a long time

- fix png/zlib links

Bug: webp:544
Bug: b/202302177
Change-Id: Id69de4553e7baf00393f12a2c1acb262443a1a93
This commit is contained in:
James Zern
2021-11-17 11:16:58 -08:00
parent 8f5cb4c18e
commit b6f756e82b
25 changed files with 52 additions and 52 deletions

View File

@ -6,8 +6,8 @@ HTML generation requires kramdown [1], easily installed as a
rubygem [2]. Rubygems installation should satisfy dependencies
automatically.
[1]: http://kramdown.rubyforge.org/
[2]: http://rubygems.org/
[1]: https://kramdown.gettalong.org/
[2]: https://rubygems.org/
HTML generation can then be done from the project root:
@ -26,4 +26,4 @@ $ kramdown doc/webp-lossless-bitstream-spec.txt --template \
Optimally, use kramdown 0.13.7 or newer if syntax highlighting desired.
[3]: http://coderay.rubychan.de/
[3]: https://github.com/rubychan/coderay