Improve language of `XSJSAuthentication.md`#196

jeongsoolee09 merged 2 commits intomainadvanced-security/codeql-sap-js:mainfrom

jeongsoolee09/XSJS-docs-updateadvanced-security/codeql-sap-js:jeongsoolee09/XSJS-docs-updateCopy head branch name to clipboard