Update 'README.md'

README.md

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 # StateJobsNYSubmit
 
-Webapp to automatically create StateJobsNY Applications with cover letter and resume then potentially automatically send application email.
+Webapp to automatically create StateJobsNY Applications with cover letter and resume then potentially automatically send application email.
+
+## References:
+* https://statejobs.ny.gov/employees/vacancyDetailsView.cfm?id=89317 - generic posting
+* https://www.scrapingbee.com/blog/web-scraping-csharp/ - for scraping posting site
+* https://stackoverflow.com/questions/2937797/best-c-sharp-api-to-create-pdf - for creating cover letter
+* https://docs.microsoft.com/en-us/dotnet/api/system.net.mail.mailmessage.attachments?view=net-5.0 - for adding attachments to email
+* https://stackoverflow.com/questions/298363/how-can-i-make-smtp-authenticated-in-c-sharp - for sending email
+