doc/faq: move question to correct section (#28997)

(cherry picked from commit f77c36b)

doc/src/manual/faq.md

@@ -41,6 +41,12 @@ obj3 = MyModule.someotherfunction(obj2, c)
 ...
 ```
 
+### How do I check if the current file is being run as the main script?
+
+When a file is run as the main script using `julia file.jl` one might want to activate extra
+functionality like command line argument handling. A way to determine that a file is run in
+this fashion is to check if `abspath(PROGRAM_FILE) == @__FILE__` is `true`.
+
 ## Functions
 
 ### I passed an argument `x` to a function, modified it inside that function, but on the outside, the variable `x` is still unchanged. Why?
@@ -645,13 +651,6 @@ as nothing but rather a tuple of zero values.
 The empty (or "bottom") type, written as `Union{}` (an empty union type), is a type with
 no values and no subtypes (except itself). You will generally not need to use this type.
 
-
-### How do I check if the current file is being run as the main script?
-
-When a file is run as the main script using `julia file.jl` one might want to activate extra
-functionality like command line argument handling. A way to determine that a file is run in
-this fashion is to check if `abspath(PROGRAM_FILE) == @__FILE__` is `true`.
-
 ## Memory
 
 ### Why does `x += y` allocate memory when `x` and `y` are arrays?