Changed the word "brackets" to "parentheses"
I want to change the word "brackets" to "parentheses" because when I think of brackets, I think of , and when I think of parentheses, I think of (), and when I originally read this, I found the word confusing.
|@@ -419,7 +419,7 @@ will be interpreted like:|
|if (athlete_list and coach_list) or cheerleader_list|
|-Use of actual brackets in the :ttag:`if` tag is invalid syntax. If you need|
|+Use of actual parentheses in the :ttag:`if` tag is invalid syntax. If you need|
|them to indicate precedence, you should use nested :ttag:`if` tags.|
|:ttag:`if` tags may also use the operators ``==``, ``!=``, ``<``, ``>``,|