add Malta visa, and fix Spain visa

Author: AwesomeVisa

nomad.md

@@ -6,7 +6,15 @@
 
 - Intro: Estonia has already transformed the way a country serves people beyond its borders through e-⁠Residency. Now with the Digital Nomad Visa, Estonia is transforming how people in the world choose to work.
 - Length of Stay: 1 years
-- Income Requirement: minimum of €4,500 gross of tax / month during the six months preceding the application
+- Income Requirement: minimum of €4,500 monthly income during the six months preceding the application
+
+### Malta
+
+#### [Nomad Resident Permit](https://nomad.residencymalta.gov.mt/)
+
+- Intro: The Nomad Residence Permit enables holders to retain their current employment based in another country whilst legally residing in Malta. The Permit is open to individuals who can work remotely and independent of location, using telecommunications technologies.
+- Length of Stay: 1 years, but can extend three times to total 4 years 
+- Income Requirement: minimum of €42,000 annual income during the six months preceding the application
 
 ### South Korea
 
@@ -20,4 +28,4 @@
 #### [Telework (Digital nomad) Visa](https://www.exteriores.gob.es/Consulados/washington/en/ServiciosConsulares/Paginas/Consular/Telework-visa.aspx)
 
 - Intro: This visa is intended for nationals of third countries who travel to Spain to carry out a remote work or professional activity for companies located outside the national territory, through the exclusive use of computer, telematics and telecommunication media and systems.
-- Length of Stay: 3 years
+- Length of Stay: 1 year, but you can convert to Telework Resident Permit to stay up to 3 years