update bio from current to past contributors (w3f#4526)

docs/general/contributors.md

@@ -62,18 +62,6 @@ development, education, and blockchain technology consulting. He is passionate a
 teaching and has always kept a foot in education by designing and delivering software development
 and blockchain classes at General Assembly, Code Fellows, and Columbia University.
 
-### Keith Alfaro
-
-- email: [[email protected]](mailto:[email protected])
-- matrix: [@keith:web3.foundation](https://matrix.to/#/@keith:web3.foundation)
-
-Keith is a member of the TechEd team at the Web3 Foundation. He has been working professionally as a
-software engineer since completing his graduate studies. Keith holds bachelor's and master's degrees
-in Architecture (buildings not computers). It was during this time that he discovered his passion
-for computational design. He was previously employed in the CAD/3D graphics software development
-domains. Keith is passionate about learning, developing and sharing decentralized solutions that
-help aid an anti-authoritarian future.
-
 ### Filippo Franchini
 
 - email: [[email protected]](mailto:[email protected])
@@ -110,6 +98,15 @@ Mechanical Engineering.
 
 The following contributors are no longer participating in an official capacity.
 
+### Keith Alfaro
+
+Keith was a member of the TechEd team at the Web3 Foundation. He has worked professionally as a
+software engineer since completing his graduate studies. Keith holds bachelor's and master's degrees
+in Architecture (buildings not computers). It was during this time that he discovered his passion
+for computational design. He was previously employed in the CAD/3D graphics software development
+domains. Keith is passionate about learning, developing and sharing decentralized and peer-to-peer
+technologies.
+
 ### Danny Salman
 
 - email: [[email protected]](mailto:[email protected])