Update README.md

Author: agusmakmun

README.md

@@ -48,7 +48,7 @@ This repository modified from old project of django blog at https://github.com/a
 - much more...
 
 <h3>ChangeLog</h3>
-- adding new feature for output post with json format (example: https://python.web.id/json-posts/48/)
+- adding new feature for output post with json format (example: https://python.web.id/json-posts/48/, docs: https://python.web.id/blog/new-feature-output-post-json-format-django-blog-python-learning-v211/)
 
 <h3>Prequirements:</h3>
 <pre>