Merge pull request leonardomso#10 from d4nyll/master

Add Tyler McGinnis article on execution contexts

Author: leonardomso

README.md

@@ -72,6 +72,7 @@ This repository was created with the intention of helping developers master thei
  * 📜 [Call Stack — MDN](https://developer.mozilla.org/en-US/docs/Glossary/Call_stack)
  * 📜 [Understanding Execution Context and Execution Stack in Javascript — Sukhjinder Arora](https://blog.bitsrc.io/understanding-execution-context-and-execution-stack-in-javascript-1c9ea8642dd0)
  * 📜 [How JavaScript Works: An Overview of the Engine, the Runtime, and the Call Stack — Alexander Zlatkov](https://blog.sessionstack.com/how-does-javascript-actually-work-part-1-b0bacc073cf)
+ * 📜 [The Ultimate Guide to Execution Contexts, Hoisting, Scopes, and Closures in JavaScript — Tyler McGinnis](https://tylermcginnis.com/ultimate-guide-to-execution-contexts-hoisting-scopes-and-closures-in-javascript/)
 
 ### Videos
 
@@ -82,6 +83,7 @@ This repository was created with the intention of helping developers master thei
  * 🎥 [The Call Stack — Kevin Drumm](https://www.youtube.com/watch?v=Q2sFmqvpBe0)
  * 🎥 [Understanding JavaScript Execution — Codesmith](https://www.youtube.com/watch?v=Z6a1cLyq7Ac&list=PLWrQZnG8l0E4kd1T_nyuVoxQUaYEWFgcD)
  * 🎥 [Call Stack & Event Loop — movies com](https://www.youtube.com/watch?v=mk0lu9MKBto)
+ * 🎥 [The Ultimate Guide to Execution Contexts, Hoisting, Scopes, and Closures in JavaScript — Tyler McGinnis](https://www.youtube.com/watch?v=Nt-qa_LlUH0)
 
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