Changed 'each' function reference to 'after'

Author: lindsay-sofia

1-js/03-code-quality/05-testing-mocha/article.md

@@ -296,7 +296,7 @@ Testing finished – after all tests (after)
 
 [edit src="beforeafter" title="Open the example in the sandbox."]
 
-Usually, `beforeEach/afterEach` (`before/each`) are used to perform initialization, zero out counters or do something else between the tests (or test groups).
+Usually, `beforeEach/afterEach` (`before/after`) are used to perform initialization, zero out counters or do something else between the tests (or test groups).
 ````
 
 ## Extending the spec