README.md in jsup-0.1.0 vs README.md in jsup-0.1.1

@@ -76,9 +76,21 @@
       "street": "13 march",
       "city": "Sofia"
     }
 }
 ```
+If you want to extract from a hash it is also possible:
+```ruby
+Jsup.produce do |j|
+  j.fetch({first: 'my', last: 'initial'}, :first, :last)
+end
+```
+```json
+{
+  "first": "my",
+  "last": "initial"
+}
+```
 
 ## Benchmarking
 For rather simple data structures jsup is way faster than jbuilder:
 ```ruby
 def jb