Remove the curl documentation in the README.md

[acabreragnz]

Although this API is about authentication, we are showing examples about the CRUD with TODO items. We should remove this section, because we already have the How to generate API documentation section.

authentication/README.md

Lines 25 to 31 in 6878f14

	* this will run an HTTP server in port 8080, if you want to change this port you have to specify it through the environment variable (AUTH_SERVER_PORT) in the _.env_ file.
	* For testing all the define endpoints you can try out these different CURL commands:
	```bash
	* Create: $ curl -H "Content-type: application/json" -d '{"i_am": "1", "title": "Some Todo Title", "the_rest": "description", "when_finish": "2018-12-06T14:26:40.623Z"}' "http://localhost:8080/todo"
	* Read: $ curl -X GET "http://localhost:8080/todo/1"
	* Update: $ curl -X PUT -H "Content-type: application/json" -d '{"i_am": "1", "title": "Some Todo Title", "the_rest": "description", "when_finish": "2018-12-06T14:26:40.623Z"}' "http://localhost:8080/todo"
	* Delete: $ curl -X DELETE "http://localhost:8080/todo/1"

[jac1013]

I agree, good catch!