updated documents

HISTORY.rst

@@ -81,3 +81,5 @@ just the fields indicated by the user and not the full Tweet object)
 
 Version 0.5.1:
 Tiny fix in the imports
+Version 0.5.2:
+Added method to get Tweet in JSON form

setup.py

@@ -51,6 +51,6 @@ setup(
     test_suite='tests',
     tests_require=test_requirements,
     url='https://github.com/Serbaf/tweet_model',
-    version='0.5.1',
+    version='0.5.2',
     zip_safe=False,
 )