Update AUTHORS.md
slight formatting update to make heading smaller.
following where I forgot to create a PR.
This file lists the contributors to OpenRefine.
-EMERITUS CREATORS (no longer active but honored for bringing OpenRefine to life)
+EMERITUS CREATORS
---------------------
-
+No longer active but honored for bringing OpenRefine to life.
- David Huynh
- Stefano Mazzocchi
-EMERITUS CONTRIBUTORS (no longer active but honored here for their previous contributions)
+EMERITUS CONTRIBUTORS
---------------------
+No longer active but honored here for their previous contributions
- Vishal Talwar
- Jeff Fry
