Merge pull request rails#2684 from waynn/patch-2

Rephrasing to sound more natural, and some grammar fixes.

Author: fxn

railties/README.rdoc

@@ -1,12 +1,12 @@
 = Railties -- Gluing the Engine to the Rails
 
-Railties is responsible to glue all frameworks together. Overall, it:
+Railties is responsible for gluing all frameworks together. Overall, it:
 
-* handles all the bootstrapping process for a Rails application;
+* handles the bootstrapping process for a Rails application;
 
-* manages rails command line interface;
+* manages the +rails+ command line interface;
 
-* provides Rails generators core;
+* and provides Rails generators core.
 
 
 == Download