Update README.md

Author: josemoracard

exercises/001-hello_world/README.md

@@ -2,20 +2,20 @@
 
 In Python, we use `print` to make the computer write anything we want (the content of a variable, a given string, etc.) in something called "the console".
 
-Every language has a console, as it was the only way to interact with the users at the beginning (before the Windows or MacOS arrived). 
+Every language has a console, as it was the only way to interact with the users at the beginning (before Windows, Linux or macOS arrived).
 
-Today, printing in the console is used mostly as a monitoring tool, ideal to leave a trace of the content of variables during the program execution.
+Today, printing in the console is mostly used as a monitoring and debugging tool, ideal for leaving a trace of the content of variables during the program's execution.
 
 ## 📝 Instructions:
 
 1. Use the `print()` function to print `"Hello World"` on the console. Feel free to try other things as well.
 
-## Example:
+## 📎 Example:
 
 ```py
 print("How are you?")
 ```
 
 ## 💡 Hint:
 
-+ 5 minutes video about [the console](https://www.youtube.com/watch?v=1RlkftxAo-M)
++ 2 minute video about [the console](https://www.youtube.com/watch?v=vROGBvX_MHQ&ab_channel=edX)