Update Sendgrid in communication.yml (#2176)
Update Sendgrid in communication.yml (#2176)

* Sendgrid supports software as well
* Update SendGrid's doc link
stephengroat/twofactorauth,bceasydns/twofactorauth,gingerbeardman/twofactorauth,gingerbeardman/twofactorauth,NormandLemay/twofactorauth,brierjon/twofactorauth,jdavis/twofactorauth,bjorno/twofactorauth,RichJeanes/twofactorauth,seitsu/twofactorauth,seitsu/twofactorauth,Jawshy/twofactorauth,ahelpingchip/twofactorauth,RichJeanes/twofactorauth,cez81/twofactorauth,stephengroat/twofactorauth,bceasydns/twofactorauth,brierjon/twofactorauth,bjorno/twofactorauth,rj175/twofactorauth,vgarmash/twofactorauth,rugk/twofactorauth,cez81/twofactorauth,rugk/twofactorauth,jtamplin/twofactorauth,baileybasiscode/twofactorauth,Criminalllz/twofactorauth,baileybasiscode/twofactorauth,Jawshy/twofactorauth,seitsu/twofactorauth,Jawshy/twofactorauth,cez81/twofactorauth,NormandLemay/twofactorauth,gingerbeardman/twofactorauth,rj175/twofactorauth,stephengroat/twofactorauth,vgarmash/twofactorauth,jdavis/twofactorauth,Nitrokey/dongleauth,Criminalllz/twofactorauth,rugk/twofactorauth,bjorno/twofactorauth,ahelpingchip/twofactorauth,NormandLemay/twofactorauth,baileybasiscode/twofactorauth,RichJeanes/twofactorauth,Nitrokey/dongleauth,Nitrokey/dongleauth,rj175/twofactorauth,Jawshy/twofactorauth,jtamplin/twofactorauth,brierjon/twofactorauth,vgarmash/twofactorauth,bceasydns/twofactorauth,jtamplin/twofactorauth,jdavis/twofactorauth,ahelpingchip/twofactorauth,Criminalllz/twofactorauth