Broken links in the docs

[anton-khodak]

https://github.com/BioContainers/specs#241-how-to-request-a-container
Both links in this section are broken

[stianlagstad]

I ran https://github.com/tcort/markdown-link-check on the .md files in this repository and it reported more dead links:

⋊> find . -name \*.md -exec markdown-link-check {} -q \;

FILE: ./container-specs.md
[✖] http://comet-ms.sourceforge.net/"
[✖] mailto:yperez@ebi.ac.uk

2 links checked.

ERROR: 2 dead links found!
[✖] http://comet-ms.sourceforge.net/" → Status: 404
[✖] mailto:yperez@ebi.ac.uk → Status: 400

FILE: ./README.md
[✖] https://github.com/BioContainers/sandbox
[✖] https://travisci
[✖] http://BioDocker.org/docs
[✖] http://github.com/BioContainers/sandbox/issues

41 links checked.

ERROR: 4 dead links found!
[✖] https://github.com/BioContainers/sandbox → Status: 404
[✖] https://travisci → Status: 0
[✖] http://BioDocker.org/docs → Status: 0
[✖] http://github.com/BioContainers/sandbox/issues → Status: 404

FILE: ./CONTRIBUTING.md
[✖] https://github.com/BioContainers/BioContainers/issues/new
[✖] https://gitter.im/BioContainers/BioContainers?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
[✖] https://github.com/BioContainers/bidocker
[✖] http://biocontainers.pro/docs/developer-manual/biocotainers-dockerfile/
[✖] http://github.com/BioContainers/BioContainers/issues
[✖] https://github.com/BioContainers/BioContainers

19 links checked.

ERROR: 6 dead links found!
[✖] https://github.com/BioContainers/BioContainers/issues/new → Status: 404
[✖] https://gitter.im/BioContainers/BioContainers?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge → Status: 404
[✖] https://github.com/BioContainers/bidocker → Status: 404
[✖] http://biocontainers.pro/docs/developer-manual/biocotainers-dockerfile/ → Status: 404
[✖] http://github.com/BioContainers/BioContainers/issues → Status: 404
[✖] https://github.com/BioContainers/BioContainers → Status: 404

[lgorenstein]

More broken links at https://github.com/BioContainers/specs/blob/master/CONTRIBUTING.md#a-quick-note-about-containers

Both links in this paragraph point to "https://github.com/BioContainers/BioContainers" which gives 404