Change 'brackets' to 'parentheses'

I think this is the way it is typically used here and elsewhere. reserving "brackets" without a qualifier for indicating square brackets., so probably no explanation is necessary. 

But, for those who want to know more:

It does seem to be the case that in British English "brackets" typically means "round brackets", which are parentheses, but in American English "brackets" typically means square brackets ("[]"). 

Admittedly, "brackets" is easier to spell. And to pronounce. Even to type, once you get used to it.

Author: paroche

1-js/04-object-basics/04-object-methods/2-check-syntax/solution.md

@@ -34,4 +34,4 @@ let user = {
 (user.go)() // John
 ```
 
-Please note that brackets around `(user.go)` do nothing here. Usually they setup the order of operations, but here the dot `.` works first anyway, so there's no effect. Only the semicolon thing matters.
+Please note that parentheses around `(user.go)` do nothing here. Usually they setup the order of operations, but here the dot `.` works first anyway, so there's no effect. Only the semicolon thing matters.