Polish formatting

See #3348

Author: sbrannen

documentation/src/docs/asciidoc/user-guide/migration-from-junit4.adoc

@@ -65,8 +65,8 @@ tests to JUnit Jupiter.
   - See also <<migrating-from-junit4-rule-support>>.
 * `@Test(expected = ...)` and the `ExpectedException` rule no longer exist; use
   `Assertions.assertThrows(...)` instead.
-  See <<migrating-from-junit4-rule-support>> if you still do need to use
-  `ExpectedException`.
+  - See <<migrating-from-junit4-rule-support>> if you still need to use
+    `ExpectedException`.
 * Assertions and assumptions in JUnit Jupiter accept the failure message as their last
   argument instead of the first one.
   - See <<migrating-from-junit4-failure-message-arguments>> for details.