add more tests (#26)

* added more tests

* (fix) no cpu profile.

__tests__/functions/Capitalize.js

@@ -0,0 +1,6 @@
+require('module-alias/register');
+const { Capitalize } = require('@dsabot/Capitalize');
+
+it('should capitalize the first letter.', () => {
+    expect(Capitalize('mother')).toBe('Mother');
+});