Switch the pulls file over to using markdown.

[robinlinden]

Markdown generation in this file wasn't working before since I had given it a .html extension instead of the .md I should have used.

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This change is 

[cebe]

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Reviewed 2 of 2 files at r1. Review status: all files reviewed at latest revision, all discussions resolved, some commit checks failed.

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Comments from Reviewable

[iphydf]

Reviewed 2 of 2 files at r1. Review status: all files reviewed at latest revision, all discussions resolved, some commit checks failed.

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[cebe]

make lint seems unhappy about this:

$ make lint
mdl -w -s .md-style.rb toktok
toktok/pulls.md: Kramdown Warning: No link definition for link ID 'twemoji-2.2.3.min.js, pr-table.js' found on line 6
make: *** [lint] Error 2

seems it does not understand the meta data headers and thinks you are using a link here [ ... ] but forgot the parenthesis for the url.

[cebe]

according to its help message:

    -i, --[no-]ignore-front-matter   Ignore YAML front matter

adding -i to the mdl call should fix this.

[iphydf]

Easy fix: use yaml style arrays.

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Review status: all files reviewed at latest revision, all discussions resolved, some commit checks failed.

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Comments from Reviewable

[cebe]

@iphydf my fix seems better :)

[iphydf]

Agreed - if it works. @robinlinden try @cebe's fix first.

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Review status: all files reviewed at latest revision, all discussions resolved, some commit checks failed.

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Comments from Reviewable