Remove extra heading + add a couple links

[mikermcneil]

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[gitpod-io]

[mikermcneil]

The problem with the markdown link checker:

I think something similar (some kind of spam protection on their end) is happening with AngelList and Crunchbase:

I think maybe they're blocking the IP of whatever is running the github action. I know from past experience Gusto has some pretty intense anti-scraping stuff (even if you're using a full headless webkit like Puppeteer), so this kinda checks out.

Looks like there's a denylist we can use, so I'ma try using that:

fleet/.github/workflows/markdown-link-check-config.json

Lines 2 to 36 in 32bd8a6

	"ignorePatterns": [
	{
	"pattern": "localhost"
	},
	{
	"pattern": "osquery.io/downloads"
	},
	{
	"pattern": "fleet.acme.org"
	},
	{
	"pattern": "fleet.corp.example.com"
	},
	{
	"pattern": "fleet.example.com"
	},
	{
	"pattern": "/server/datastore/mysql/migrations/"
	},
	{
	"pattern": "linkedin.com/company/fleetdm"
	},
	{
	"pattern": "github.com/fleetdm/confidential"
	},
	{
	"pattern": "osquery.io/schema"
	},
	{
	"pattern": "github.com/issues"
	},
	{
	"pattern": "goreportcard.com"
	}
	],