Update preface.asciidoc
@ -179,6 +179,7 @@ Following is an alphabetically sorted list of all the GitHub contributors, inclu
* Alpha Q. Smith (@alpha_github_id)
* Doru Muntean (@chriton)
* Eduardo Lima III (@elima-iii)
* Hatim Boufnichel (@boufni95)
* Ricardo Marques (@RicardoM17)
* Omega X. Last (@omega_github_id)