fix: grammar call stack vs event queue (#32)

Author: codr

questions/what-is-event-loop-what-is-the-difference-between-call-stack-and-task-queue/en-US.mdx

@@ -5,7 +5,7 @@ subtitle: What is the difference between call stack and task queue?
 
 ## TL;DR
 
-The event loop is concept within the JavaScript runtime environment regarding how asynchronous operations are executed within JavaScript engines. It works as such:
+The event loop is a concept within the JavaScript runtime environment regarding how asynchronous operations are executed within JavaScript engines. It works as such:
 
 1. The JavaScript engine starts executing scripts, placing synchronous operations on the call stack.
 2. When an asynchronous operation is encountered (e.g., `setTimeout()`, HTTP request), it is offloaded to the respective Web API or Node.js API to handle the operation in the background.
@@ -19,7 +19,7 @@ The event loop is concept within the JavaScript runtime environment regarding ho
 
 The unfortunate truth is that it is extremely hard to explain the event loop well using only text. We recommend checking out one of the following excellent videos explaining the event loop:
 
-- [JavaScript Visualized - Event Loop, Web APIs, (Micro)task Queue](https://www.youtube.com/watch?v=eiC58R16hb8) (2024): Lydia Hallie is a popular educator on JavaScript and this is the best recent videos explaining the event loop. There's also an [accompanying blog post](https://www.lydiahallie.com/blog/event-loop) for those who prefer detailed text-based explanations.
+- [JavaScript Visualized - Event Loop, Web APIs, (Micro)task Queue](https://www.youtube.com/watch?v=eiC58R16hb8) (2024): Lydia Hallie is a popular educator on JavaScript and this is the best recent video explaining the event loop. There's also an [accompanying blog post](https://www.lydiahallie.com/blog/event-loop) for those who prefer detailed text-based explanations.
 - [In the Loop](https://www.youtube.com/watch?v=cCOL7MC4Pl0) (2018): Jake Archibald previously from the Chrome team provides a visual demonstration of the event loop during JSConf 2018, accounting for different types of tasks.
 - [What the heck is the event loop anyway?](https://www.youtube.com/watch?v=8aGhZQkoFbQ) (2014): Philip Robert's gave this epic talk at JSConf 2014 and it is one of the most viewed JavaScript videos on YouTube.