minor fixes

Author: iliakan

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

@@ -297,7 +297,7 @@ const pageLoadTime = /* time taken by a webpage to load */;
 
 The value of `pageLoadTime` is not known prior to the page load, so it's named normally. But it's still a constant because it doesn't change after assignment.
 
-In other words, capital-named constants are only used as aliases for "hard-coded" values.  
+In other words, capital-named constants are only used as aliases for "hard-coded" values.
 
 ## Name things right