Fixed spelling error in README.md

The word 'weeks' in the Full Stack Web Development (Specialization) had an extra e.

Author: mysteryihs

README.md

@@ -400,7 +400,7 @@ Courses | Duration | Effort | Prerequisites
 [Big Data (Specialization)](https://www.coursera.org/specializations/big-data) | 30 weeks | 3-5 hours/week | none
 [Internet of Things (Specialization)](https://www.coursera.org/specializations/internet-of-things) | 30 weeks | 1-5 hours/week | strong programming
 [Cloud Computing (Specialization)](https://www.coursera.org/specializations/cloud-computing) | 30 weeks | 2-6 hours/week | C++ programming
-[Full Stack Web Development (Specialization)](https://www.coursera.org/specializations/full-stack) | 27 weeeks | 2-6 hours/week | programming, databases
+[Full Stack Web Development (Specialization)](https://www.coursera.org/specializations/full-stack) | 27 weeks | 2-6 hours/week | programming, databases
 [Data Science (Specialization)](https://www.coursera.org/specializations/jhu-data-science) | 43 weeks | 1-6 hours/week | none
 [Functional Programming in Scala (Specialization)](https://www.coursera.org/specializations/scala) | 29 weeks | 4-5 hours/weeks | One year programming experience