README.md in eigindir-0.0.2 vs README.md in eigindir-0.0.3

@@ -233,11 +233,11 @@
 
 ```ruby
 class Foo
   include Eigindir
 
-  attribute :bar, coerce: &:to_s
+  attribute :bar, coerce: ->(value) { value.to_s }
 end
 
 foo = Foo.new
 foo.bar = nil
 foo.instance_eval "@bar" # => nil
@@ -248,10 +248,10 @@
 
 ```ruby
 class Foo
   include Eigindir
 
-  attribute :baz, coerce: &:to_s, strict: true
+  attribute :baz, coerce: ->(value) { value.to_s }, strict: true
 end
 
 foo = Foo.new
 foo.bar = nil
 foo.instance_eval "@bar" # => ""