Update README.md

Author: mikeckennedy

README.md

@@ -24,6 +24,6 @@ It's easy and 100% free.
 
 ## You have a free and paid course?
 
-Wondering how this compares to our full, commercial [MongoDB for Python for Developers course](https://training.talkpython.fm/courses/explore_mongodb_for_python_developers_course/mongodb-for-python-for-developers-featuring-orm-odm-mongoengine)? This course is a brief introduction and will be about 1.25 hours. The full MongoDB course covers much more, in greater depth and is 7 hours of content.
+Wondering how this compares to our full, commercial [MongoDB for Python for Developers course](https://training.talkpython.fm/courses/explore_mongodb_for_python_developers_course/mongodb-for-python-for-developers-featuring-orm-odm-mongoengine)? This course is a brief introduction and 2.0 hours long. The full MongoDB course covers much more, in greater depth and is 7 hours of content.
 
 Think of this course as the appetizer to prepare you for the main course. That said, the demo materials and majority of the content is unique to this course.