chore(readme): add do sponsor content

Add sponsor logo/content for DigitalOcean 😍

Author: Sean

README.md

@@ -90,10 +90,17 @@ Before creating a pull request be sure to read the [Contributing Guide](CONTRIBU
 
 ## Sponsors
 
-#### Cross-browser testing provided by [BrowserStack](https://www.browserstack.com)
+### Infrastructure hosted and powered by [DigitalOcean](https://www.digitalocean.com/?utm_medium=opensource&utm_source=fomantic)
+[![DigitalOcean](https://opensource.nyc3.cdn.digitaloceanspaces.com/attribution/assets/PNG/DO_Logo_Horizontal_Blue.png)](https://www.digitalocean.com/?utm_medium=opensource&utm_source=fomantic)
+
+Sign up now and get $100 in credit for 60 days! [Sign up here!](https://m.do.co/c/bece3e1afb7f)
+
+
+### Cross-browser testing provided by [BrowserStack](https://www.browserstack.com)
 [![BrowserStack](https://cdn.rawgit.com/fomantic/Fomantic-UI-Docs/35180e95/server/raw/images/browserstack.png)](https://www.browserstack.com)
 
-#### IDE's provided by [JetBrains](https://www.jetbrains.com?from=Fomantic-UI)
+
+### IDE's provided by [JetBrains](https://www.jetbrains.com?from=Fomantic-UI)
 [![JetBrains](https://fomantic-ui.com/images/jetbrains.svg)](https://www.jetbrains.com?from=Fomantic-UI)
 
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