[Snyk] Fix for 11 vulnerabilities

[xiezhongfu]

Snyk has created this PR to fix 11 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• docs/package.json
• docs/package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Prototype Pollution SNYK-JS-LODASH-567746	731
	Asymmetric Resource Consumption (Amplification) SNYK-JS-BODYPARSER-7926860	696
	Code Injection SNYK-JS-LODASH-1040724	681
	Regular Expression Denial of Service (ReDoS) SNYK-JS-LODASH-1018905	586
	Regular Expression Denial of Service (ReDoS) SNYK-JS-PATHPARSE-1077067	586
	Prototype Pollution SNYK-JS-XML2JS-5414874	586
	Cross-site Scripting SNYK-JS-EXPRESS-7926867	541
	Regular Expression Denial of Service (ReDoS) npm:debug:20170905	506
	Exposure of Sensitive Information to an Unauthorized Actor SNYK-JS-PHIN-6598077	429
	Cross-site Scripting SNYK-JS-SEND-7926862	391
	Cross-site Scripting SNYK-JS-SERVESTATIC-7926865	391

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• Check the changes in this PR to ensure they won't cause issues with your project.
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• This PR was automatically created by Snyk using the credentials of a real user.

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