Fixed "compatibility" spelling error

Author: yasath

1-js/02-first-steps/05-types/article.md

@@ -81,7 +81,7 @@ const bigInt = 1234567890123456789012345678901234567890n;
 
 As `BigInt` numbers are rarely needed, we don't cover them here, but devoted them a separate chapter <info:bigint>. Read it when you need such big numbers.
 
-```smart header="Compatability issues"
+```smart header="Compatibility issues"
 Right now `BigInt` is supported in Firefox/Chrome/Edge, but not in Safari/IE.
 ```