add some guides to the Rails section in the Russian version, renamed the title...

add some guides to the Rails section in the Russian version, renamed the title of the book about Ruby

free-programming-books-ru.md

@@ -5,6 +5,7 @@
 * [Perl](#perl)
 * [R](#r)
 * [Ruby](#ruby)
+* [Ruby on Rails](#ruby-on-rails)
 * [SQL](#sql)
 
 
@@ -36,7 +37,13 @@
 
 ###Ruby
 
-* [Ruby](https://github.com/Krugloff/rus_ruby_book)
+* [Круглов А. — Ruby](https://github.com/Krugloff/rus_ruby_book)
+
+
+###Ruby on Rails
+
+* [Ruby on Rails Guides](http://rusrails.ru)
+* [Ruby on Rails Tutorial](http://railstutorial.ru/)
 
 
 ###SQL