Added draft of translation of locales/es.yml to Spanish.

Couldn't find a way to translate "User Group".
I don't think we should translate Pull Request.

Author: eljojo

locales/es.yml

@@ -2,11 +2,11 @@
 en:
   header:
     title: "Berlin Code of Conduct"
-    sub-title: "A Code of Conduct for all User Groups and Conferences"
+    sub-title: "Un Código de Conducta para todos los User Groups y Conferencias"
   supporters:
-    title: "Supporters"
-    sub-title: "Those user groups and conferences support the Berlin Code of Conduct:"
-    add: "To list your user group/conference here, just add it in a pull request to %{link:our repository}."
+    title: "Partidarios"
+    sub-title: "Estos User Groups y Conferencias son partidarios del Berlin Code of Conduct:"
+    add: "Para agregar tu user group/conferencia aquí, sólo agrégalo como un Pull Request en %{link:nuestro repositorio}."
   footer:
-    attribution: "This code of conduct is adapted from the %{link:pdx.rb code of conduct}."
+    attribution: "Este código de conducta es una adaptación del %{link:código de conducta de pdx.rb}."