Link Checker Improvements

[DerekMelchin]

Expected Behavior

If a link is empty, then the link checker flags it. Ex:

<a href=''><span class='button-name'>Executable Path: Docker</span> setting</a>

Actual Behavior

The link checker doesn't flag it.

Checklist

• [x] I have completely filled out this template
• [x] I have confirmed that this issue exists on the current master branch
• [x] I have confirmed that this is not a duplicate issue by searching issues

[LouisSzeto]

fixed via commit cd7a2bc82213defe570036d3d97d5512d0e574dd

[AlexCatarino]

Reopen to add a check for /docs without /docs/v2

[LouisSzeto]

fixed via commit 225e960f7dd3591939741b015120d09385bd8726