readme update

Author: Chris Wu

README.md

@@ -20,7 +20,7 @@ How to scale up? There are also lots of tech interview related topic in his chan
 Basic data structure and algorithm online course taught in Python. This course is design to help you find job and do well in the interview.  
 <https://classroom.udacity.com/courses/ud513>
 
-## Prepare in a Structured Way
+## Prepare in a Structural Way
 1. <https://www.quora.com/How-should-I-prepare-for-my-Google-interview-if-I-have-1-month-left-and-I%E2%80%99m-applying-for-a-software-engineer-role/answer/Anthony-D-Mays?ch=10&share=5c488000&srid=W0jqp>
 2. <https://www.quora.com/How-can-I-get-a-job-at-Facebook-or-Google-in-6-months-I-need-a-concise-work-plan-to-build-a-good-enough-skill-set-Should-I-join-some-other-start-up-or-build-my-own-projects-start-up-Should-I-just-focus-on-practicing-data-structures-and-algorithms/answer/Jimmy-Saade>
 3. <https://www.quora.com/What-should-I-know-from-the-CLRS-3rd-edition-book-if-my-aim-is-to-get-into-Google/answer/Jimmy-Saade>