Update README.md

README.md

 # Forest Monitoring
 In this GitLab you will find every information you need about the Forest monitoring project.
-It is divided in 4 repositories, but we deeply recommend you to read the "Final report" file before doing anything.
+It is divided in 6 repositories, but we deeply recommend you to read the "Final report" file before doing anything.
 
 The "Datasheets" repository gives you a file with all the components we used in this project and their references.