Add handles to contributors

overview.md

@@ -86,21 +86,24 @@ The distinction between protocols and applications is clearer in the federated s
 
 ## Contributions
 
-Thanks for contributions from:
+Written by Jay Graber ([@arcalinea](https://twitter.com/arcalinea))
 
-- Andre Staltz
-- Burak Nehbit
-- Christopher Lemmer Webber
-- Danny Zuckerman
-- Eugen Rochko
-- Golda Velez
-- Ian Preston
-- Molly MacKinley
-- Matthew Hodgson
-- Mark Nadal
-- Paul Frazee
-- Rahul Kothari
-- Sarven Capadisli
+Contributions from:
+
+- Andre Staltz ([@andrestaltz](https://twitter.com/andrestaltz))
+- Burak Nehbit ([@nehbit](https://twitter.com/nehbit))
+- Christopher Lemmer Webber ([@dustyweb](https://twitter.com/dustyweb))
+- Danny Zuckerman ([@dazuck](https://twitter.com/dazuck))
+- Eugen Rochko ([@Gargron@mastodon.social](https://mastodon.social/@Gargron))
+- Golda Velez ([@gvelez17](https://twitter.com/gvelez17))
+- Ian Preston ([@Ianopolous](https://twitter.com/Ianopolous))
+- Jeromy Johnson ([@whyrusleeping](https://twitter.com/whyrusleeping))
+- Molly MacKinley ([@momack28](https://twitter.com/momack28))
+- Matthew Hodgson ([@ara4n](https://twitter.com/ara4n))
+- Mark Nadal ([@marknadal](https://twitter.com/marknadal))
+- Paul Frazee ([@pfrazee](https://twitter.com/pfrazee))
+- Rahul Kothari ([@BlockchainRahul](https://twitter.com/BlockchainRahul))
+- Sarven Capadisli ([@csarven](https://twitter.com/csarven))
 
 ## Further Reading