build: bump html-pipeline from 2.12.2 to 2.12.3 in /docs

Bumps [html-pipeline](https://github.com/jch/html-pipeline) from 2.12.2 to 2.12.3.
- [Release notes](https://github.com/jch/html-pipeline/releases)
- [Changelog](https://github.com/jch/html-pipeline/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jch/html-pipeline/compare/v2.12.2...v2.12.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
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dependabot-preview[bot] 2019-12-19 17:58:59 +00:00 committed by GitHub
parent 8c0229a3ac
commit 9a7e822457
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@ -80,7 +80,7 @@ GEM
octokit (~> 4.0)
public_suffix (~> 3.0)
typhoeus (~> 1.3)
html-pipeline (2.12.2)
html-pipeline (2.12.3)
activesupport (>= 2)
nokogiri (>= 1.4)
html-proofer (3.15.0)