Merge pull request #3013 from Rnbsov/patch-49

⚡ placed missed break lines and remove extra

Author: iliakan

1-js/02-first-steps/04-variables/article.md

@@ -64,6 +64,7 @@ let message = 'Hello';
 ```
 
 Some people also define multiple variables in this multiline style:
+
 ```js no-beautify
 let user = 'John',
   age = 25,
@@ -103,6 +104,7 @@ For instance, the variable `message` can be imagined as a box labeled `"message"
 We can put any value in the box.
 
 We can also change it as many times as we want:
+
 ```js run
 let message;
 
@@ -260,7 +262,6 @@ myBirthday = '01.01.2001'; // error, can't reassign the constant!
 
 When a programmer is sure that a variable will never change, they can declare it with `const` to guarantee and clearly communicate that fact to everyone.
 
-
 ### Uppercase constants
 
 There is a widespread practice to use constants as aliases for difficult-to-remember values that are known prior to execution.
@@ -291,6 +292,7 @@ When should we use capitals for a constant and when should we name it normally?
 Being a "constant" just means that a variable's value never changes. But there are constants that are known prior to execution (like a hexadecimal value for red) and there are constants that are *calculated* in run-time, during the execution, but do not change after their initial assignment.
 
 For instance:
+
 ```js
 const pageLoadTime = /* time taken by a webpage to load */;
 ```