Removed one more utils reference in the README and fixed directory name

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

tests/notifications_utils/test_take.py

@@ -0,0 +1,19 @@
+from notifications_utils.take import Take
+
+
+def _uppercase(value):
+    return value.upper()
+
+
+def _append(value, to_append):
+    return value + to_append
+
+
+def _prepend_with_service_name(value, service_name=None):
+    return "{}: {}".format(service_name, value)
+
+
+def test_take():
+    assert "Service name: HELLO WORLD!" == Take("hello world").then(_uppercase).then(
+        _append, "!"
+    ).then(_prepend_with_service_name, service_name="Service name")