Add some documentation to help contribution
Add some documentation to help contribution

Spirals-Team/librepair,fermadeiral/librepair,Spirals-Team/librepair,fermadeiral/librepair,fermadeiral/librepair,Spirals-Team/librepair,Spirals-Team/librepair,Spirals-Team/librepair,fermadeiral/librepair,fermadeiral/librepair