Add thank section

Author: madeindjs

rails5/en/chapter00-before.adoc

@@ -31,3 +31,15 @@ THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMP
 ****
 
 "API on Rails 5" by https://github.com/madeindjs/api_on_rails[Alexandre Rousseau] is shared according to http://creativecommons.org/licenses/by-sa/4.0/[Creative Commons Attribution - Attribution-ShareAlike 4.0 International]. Built upon this book http://apionrails.icalialabs.com/book/.
+
+== Thanks
+
+A big "thank you" to all Github contributors who make this book alive. In alphabetical order:
+
+* https://github.com/airdry[airdry]
+* https://github.com/Landris18[Landris18]
+* https://github.com/lex111[lex111]
+* https://github.com/cuilei5205189[cuilei5205189]
+* https://github.com/franklinjosmell[franklinjosmell]
+* https://github.com/notapatch[notapatch]
+* https://github.com/tacataca[tacataca]

rails5/fr/chapter00-before.adoc

@@ -29,3 +29,15 @@ LE LOGICIEL EST FOURNI «TEL QUEL», SANS GARANTIE D’AUCUNE SORTE, EXPLICITE O
 ****
 
 "API on Rails 5" de https://github.com/madeindjs/api_on_rails[Alexandre Rousseau] est mis à disposition selon les termes de la licence http://creativecommons.org/licenses/by-sa/4.0/[Creative Commons Attribution - Partage dans les Mêmes Conditions 4.0 International]. Fondé sur une œuvre à http://apionrails.icalialabs.com/book/.
+
+== Merci
+
+Un grand merci à tous les contributeurs de Github qui rendent ce livre vivant. Par ordre alphabétique :
+
+* https://github.com/airdry[airdry]
+* https://github.com/Landris18[Landris18]
+* https://github.com/lex111[lex111]
+* https://github.com/cuilei5205189[cuilei5205189]
+* https://github.com/franklinjosmell[franklinjosmell]
+* https://github.com/notapatch[notapatch]
+* https://github.com/tacataca[tacataca]

rails6/en/chapter00-before.adoc

@@ -32,4 +32,16 @@ THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMP
 
 "API on Rails 6" by https://github.com/madeindjs/api_on_rails[Alexandre Rousseau] is shared according to http://creativecommons.org/licenses/by-sa/4.0/[Creative Commons Attribution - Attribution-ShareAlike 4.0 International]. Built upon this book http://apionrails.icalialabs.com/book/.
 
-Book's cover picture use a beautiful photo shot by https://unsplash.com/@siloine?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText[Yoann Siloine] who published it on https://unsplash.com[Unsplash].
+Book's cover picture use a beautiful photo shot by https://unsplash.com/@siloine?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText[Yoann Siloine] who published it on https://unsplash.com[Unsplash].
+
+== Thanks
+
+A big "thank you" to all Github contributors who make this book alive. In alphabetical order:
+
+* https://github.com/airdry[airdry]
+* https://github.com/Landris18[Landris18]
+* https://github.com/lex111[lex111]
+* https://github.com/cuilei5205189[cuilei5205189]
+* https://github.com/franklinjosmell[franklinjosmell]
+* https://github.com/notapatch[notapatch]
+* https://github.com/tacataca[tacataca]

rails6/fr/chapter00-before.adoc

@@ -31,3 +31,15 @@ LE LOGICIEL EST FOURNI «TEL QUEL», SANS GARANTIE D’AUCUNE SORTE, EXPLICITE O
 ****
 
 "API on Rails 6" de https://github.com/madeindjs/api_on_rails[Alexandre Rousseau] est mis à disposition selon les termes de la licence http://creativecommons.org/licenses/by-sa/4.0/[Creative Commons Attribution - Partage dans les Mêmes Conditions 4.0 International]. Fondé sur une œuvre à http://apionrails.icalialabs.com/book/.
+
+== Merci
+
+Un grand merci à tous les contributeurs de Github qui rendent ce livre vivant. Par ordre alphabétique :
+
+* https://github.com/airdry[airdry]
+* https://github.com/Landris18[Landris18]
+* https://github.com/lex111[lex111]
+* https://github.com/cuilei5205189[cuilei5205189]
+* https://github.com/franklinjosmell[franklinjosmell]
+* https://github.com/notapatch[notapatch]
+* https://github.com/tacataca[tacataca]