Update README.md

Author: aneagoie

README.md

@@ -14,9 +14,9 @@ We have created a special area for the ZTM community to share their solutions an
 2. Go to https://adventofcode.com/ and start with problem #1! Each day starting Dec 1st, 2019 a new problem will be unlocked but you have to do them in order!
 3. Once you finish one puzzle/question, you can share your code and solution with the community, or check out what others in the ZTM community have done. You can even vote on your favourite solutions! You can [follow this video on how to submit your solution](https://www.loom.com/share/7310b6e83bcc4922b25023b62d173611).
 4. Check out the leaderboard and see how you compare: https://aoc.zerotomastery.io/leaderboard
-5. **Bonus**: In case you get stuck, I made 2 videos available for free preview for you to see how I solve one of the problems and the steps I take. Simply go to the Complete Web Developer in 2020: Zero to Mastery course and check out the two lectures (*Exercise: Santa's Node Helper* and *Solution: Santas Node Helper*). Even if you are not enrolled in the course these two videos have the free preview option enabled). 
+5. **Bonus**: In case you get stuck, I made 2 videos available for free preview for you to show you how I solve one of the problems and the steps I take. Simply go to the [Complete Web Developer in 2020: Zero to Mastery](https://www.udemy.com/course/the-complete-web-developer-zero-to-mastery/?referralCode=FFF295AECF3594CE440E) course and check out the two lectures (*Exercise: Santa's Node Helper* and *Solution: Santas Node Helper*). Even if you are not enrolled in the course these two videos have the free preview option enabled). 
 
-**You can discuss all AOC related topics in our #coding-challenge channel on Discord**
+**You can discuss all AOC related topics in our #coding-challenge channel on Discord!**
 
 # Who made this possible?
 Some of our fellow ZTM members helped create this awesome platform to submit and share code. Give them a big thank you on Discord!