Correct spelling error

Author: russom-g

implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js

@@ -17,7 +17,7 @@ test("Valid Queen card", () => {
   assert.equal(getCardValue("Q♣"), 10);
 });
 
-test("Valid single-digit card", () => {
+test("Valid King card", () => {
   assert.equal(getCardValue("K♦"), 10);
 });