Fix type inference example in "Creating an Empty Array"

Updated the array initialization example to demonstrate type inference
(var someInts = [Int]()) for consistency with other sections in the guide,
such as Sets and Dictionaries. This change aligns the code example with
the accompanying explanatory text.

Author: bohdany-cricut

TSPL.docc/LanguageGuide/CollectionTypes.md

@@ -83,7 +83,7 @@ print("someInts is of type [Int] with \(someInts.count) items.")
   - test: `arraysEmpty`
 
   ```swifttest
-  -> var someInts: [Int] = []
+  -> var someInts = [Int]()
   -> print("someInts is of type [Int] with \(someInts.count) items.")
   <- someInts is of type [Int] with 0 items.
   ```