Update README.md

README.md

@@ -29,6 +29,14 @@ or download the <a href="https://oss.sonatype.org/service/local/repositories/rel
 
 The API of this library is clean, intuitive and generally close to the ``javax.json`` API that most developers are used to:
 
+## Features
+
+Since the library is quite young, it doesn't support all the features of YAML yet. For now, it only supports creating/parsing **blobk** YAML, so use it if you have to read/create configuration files and such stuff. It doesn't yet implement features such as **flow** or **recursive** representation or document streams (more YAMLs separated by ``---``).
+
+However, keep in mind that the library is based on interfaces and OOP best practices, so you can probably extend/decorate the objects in order to create the functionality you need! 
+
+If you have some time and like the library, please consider contributing. 
+
 ## Building and printing Yaml:
 
 ```java