Update site.json

src/data/site.json

@@ -16,7 +16,7 @@
     "footer": "",
     "home": ["booksingle"]
   },
-  "footertagline": "Coko was founded in 2015. Initial seed funding from the Shuttleworth Foundation as part of <a href=\"https://shuttleworthfoundation.org/fellows/adam-hyde/\">Adam Hyde's Fellowship</a>.",
+  "footertagline": "Founded in 2015 with initial seed funding from the Shuttleworth Foundation as part of [Adam Hyde's Fellowship](https://shuttleworthfoundation.org/fellows/adam-hyde/).",
   "socialMedia": [
     {
       "name": "twitter",