chore(deps): update dependency documentation to v13

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
documentation (source)	devDependencies	major	12.3.0 -> 13.0.0

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Release Notes

documentationjs/documentation

### [`v13.0.0`](https://togithub.com/documentationjs/documentation/blob/master/CHANGELOG.md#​1300-httpsgithubcomdocumentationjsdocumentationcomparev1230v1300-2020-05-09) [Compare Source](https://togithub.com/documentationjs/documentation/compare/v12.3.0...v13.0.0) ##### Chores - Update Node minimum version to 10 ([45a5257](https://togithub.com/documentationjs/documentation/commit/45a5257)) ##### BREAKING CHANGES - documentation.js will now require node 10 or later.

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[codecov[bot]]

Codecov Report

Merging #106 into master will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #106   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines           60        60           
=========================================
  Hits            60        60           

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