Update example

Kerr Marin Miller · Kerr Marin Miller · commit 5db22d9566e0 · 2016-10-24T17:01:12.000-07:00
diff --git a/swift/README.md b/swift/README.md
@@ -43,7 +43,7 @@ import XCTest
 
 class IntegerTests: XCTestCase {
     func testSeven() {
-        XCTAssertNotNil(Int.seven())
+        XCTAssertEqual(7, Int.seven())
     }
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -43,7 +43,7 @@ import XCTest`
`43`	`43`
`44`	`44`	`class IntegerTests: XCTestCase {`
`45`	`45`	`func testSeven() {`
`46`		`- XCTAssertNotNil(Int.seven())`
	`46`	`+ XCTAssertEqual(7, Int.seven())`
`47`	`47`	`}`
`48`	`48`	`}`
`49`	`49`	```