Preparation for 0.2.0 release

Author: cedricrupb

README.md

@@ -75,7 +75,20 @@ Languages in the `native` class support all features
 of this library and are extensively tested. `advanced` languages are tested but do not support the full feature set. Languages of the `basic` class are not tested and
 only support the feature set of the backend. They can still be used for tokenization and AST parsing.
 
+## How to contribute
+**Your language is not natively supported by code.tokenize or the tokenization seems to be incorrect?** Then change it!
+
+While code.tokenize is developed mainly as an helper library for internal research projects, we welcome pull requests of any sorts (if it is a new feature or a bug fix). 
+
+**Want to help to test more languages?**
+Our goal is to support as many languages as possible at a `native` level. However, languages on `basic` level are completly untested. You can help by testing `basic` languages and reporting issues in the tokenization process!
+
 ## Release history
+* 0.2.0
+    * Major API redesign!
+    * CHANGE: AST parsing is now done by an external library: [code_ast](https://github.com/cedricrupb/code_ast)
+    * CHANGE: Visitor pattern instead of custom tokenizer
+    * CHANGE: Custom visitors for language dependent tokenization
 * 0.1.0
     * The first proper release
     * CHANGE: Language specific tokenizer configuration

setup.py

@@ -6,7 +6,7 @@
 setup(
   name = 'code_tokenize',
   packages = ['code_tokenize'], 
-  version = '0.1.0', 
+  version = '0.2.0', 
   license='MIT',     
   description = 'Fast program tokenization and structural analysis in Python',
   long_description = long_description,
@@ -19,7 +19,8 @@
   install_requires=[          
           'tree_sitter',
           'GitPython',
-          'requests'
+          'requests',
+          'code-ast'
       ],
   classifiers=[
     'Development Status :: 3 - Alpha',