added done in requestcount test file

Author: siddanth-6365

week-3/01-middlewares/tests/01-requestcount.spec.js

@@ -12,7 +12,7 @@ describe('GET /user', function() {
       })
   });
 
-  it('10 more requests log 12', function() {
+  it('10 more requests log 12', function(done) {
           for (let i = 0; i<10; i++) {
             request(app)
                   .get('/user')