minor fixesin READMEs

actionmailer/README.rdoc

@@ -59,7 +59,7 @@ generated would look like this:
 
   Mr. david@loudthinking.com
 
-In previous version of rails you would call <tt>create_method_name</tt> and
+In previous version of Rails you would call <tt>create_method_name</tt> and
 <tt>deliver_method_name</tt>.  Rails 3.0 has a much simpler interface, you
 simply call the method and optionally call +deliver+ on the return value.
 

actionpack/README.rdoc

@@ -262,7 +262,7 @@ methods:
     layout "weblog/layout"
 
     def index
-      @posts = Post.find(:all)
+      @posts = Post.all
     end
 
     def show

activemodel/README.rdoc

@@ -84,7 +84,7 @@ modules:
       attr_reader   :errors
 
       def validate!
-        errors.add(:name, "can not be nil") if name == nil
+        errors.add(:name, "can not be nil") if name.nil?
       end
 
       def ErrorsPerson.human_attribute_name(attr, options = {})
@@ -94,10 +94,10 @@ modules:
     end
 
     person.errors.full_messages
-    # => ["Name Can not be nil"]
+    # => ["Name can not be nil"]
 
     person.errors.full_messages
-    # => ["Name Can not be nil"]
+    # => ["Name can not be nil"]
 
   {Learn more}[link:classes/ActiveModel/Errors.html]
 

activeresource/README.rdoc

@@ -95,7 +95,7 @@ Collections can also be requested in a similar fashion
    #
    # for GET http://api.people.com:3000/people.xml
    #
-   people = Person.find(:all)
+   people = Person.all
    people.first  # => <Person::xxx 'first' => 'Ryan' ...>
    people.last  # => <Person::xxx 'first' => 'Jim' ...>