Add 'This Round was Hosted on Grants Stack' at the bottom

[ufkhan97]

Add a new section at the bottom of the report card that includes the Grant Stack logo and is clickable. It should link to: https://www.gitcoin.co/grants-stack

'This Round was Hosted on Grants Stack. Host your own today.'

[ufkhan97]

Completed by #35

Update copy to:

"This round was hosted on Gitcoin Grants Stack
Host your own today"

• remove underline

[ufkhan97]

Updated and Completed by #37