Update resources

doc/images/README → doc/images/README.md

-README (English)
+# README (English)
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-* Most screen captures and icons are Dolibarr contributions, however,
-some icons are from http://led24.de/iconset/. This is original README file for this source:
+
+* Screen captures and icons are Dolibarr contributions
+
+
+* Most logos were created by Dolibarr developers. You may find sources of them on:
+
+https://github.com/Dolibarr/foundation
+
+
+* Few icons are from http://led24.de/iconset/. This is original README file for this source:
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 You can do whatever you want with these icons (use on web or in desktop applications) as long as you don’t pass them off as your own and remove this readme file. A credit statement and a link back to
 http://led24.de/iconset/ or http://led24.de/ would be appreciated.