Update problem file

Author: AydinHassan

exercises/throw-an-expression/problem/problem.md

@@ -1,10 +1,11 @@
 You have been given a piece of code (look for `throw-an-expression.php` in your working directory) which is checking the requested URL and throwing an exception when a secret area of the website is accessed.
 
-If the request is allowed the `Welcome!` is printed out.
+If the request is allowed, `Welcome!` is printed out.
 
-Traditionally, pre PHP 8, an exception throw has been a statement. There are certain places where statements can be used, and only expressions can. For example in ternaries and short closures, only expressions can be used.
 
-PHP 8 has changed that, throw statements are now expressions.
+Traditionally, pre PHP 8, an exception throw has been a statement. There are certain places where statements can be used, and only expressions can be used. For example, in ternaries and short closures, only expressions can be used.
+
+Now with PHP 8, throw statements are expressions making them available to use in pretty much all locations.
 
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 Your task is to convert the `if` statement to one line of code, using the ternary operator.