Text tweak.

Author: nathansmith

ANSWERS.md

@@ -327,7 +327,8 @@ Joking aside though, if you're a job applicant skimming these answers so that yo
 
  Also, though potentially unreliable in multi-frame DOM environments, `instanceof` is a perfectly suited operator.
 
- Context: *"Instanceof Considered Harmful&hellip;"*<br />
+ Further reading: *"Instanceof Considered Harmful&hellip;"*
+
  http://perfectionkills.com/instanceof-considered-harmful-or-how-to-write-a-robust-isarray
 
  ```js