Referências da aula:
https://www.99freelas.com.br/apps/calculadora-freelancer
https://www.99freelas.com.br/
https://www.getninjas.com.br/
https://www.workana.com/pt
https://www.upwork.com/
https://br.fiverr.com/
https://medium.com/chocoladesign/tabela-de-pre%C3%A7os-de-design-3d3609cbb301
