Merge pull request #960 from bsumma/patch-3

Update supporters-and-exhibition.md

content/info/exhibition/supporters-and-exhibition.md

@@ -21,4 +21,5 @@ For more details please see the [IEEE VIS 2020 Supporter Prospectus]({{ 'content
 * Silver supporters and above will also be featured in a product highlight email sent to VIS registrants before and after the conference.
 * Platinum supporters and above will have the opportunity to speak at a dedicated sponser session and be featured in a sponsor slide during the general session.
 * Diamond supporters will have a speaking opportunity at a dedicated industry forum and can sponsor the electronic poster program with their company logo displayed between poster transitions.
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 You can also contact the supporter chairs: [[email protected]](mailto:[email protected]).