Fix functions docstrings

Author: silvanocerza

arduino/cores/packagemanager/package_manager.go

@@ -438,6 +438,8 @@ func (pm *PackageManager) InstalledBoards() []*cores.Board {
 	return boards
 }
 
+// FindToolsRequiredFromPlatformRelease returns a list of ToolReleases needed by the specified PlatformRelease.
+// If a ToolRelease is not found return an error
 func (pm *PackageManager) FindToolsRequiredFromPlatformRelease(platform *cores.PlatformRelease) ([]*cores.ToolRelease, error) {
 	pm.Log.Infof("Searching tools required for platform %s", platform)
 

arduino/discovery/discoverymanager/discoverymanager.go

@@ -139,6 +139,7 @@ func (dm *DiscoveryManager) QuitAll() error {
 	return nil
 }
 
+// List returns a list of available ports detected from all discoveries
 func (dm *DiscoveryManager) List() []*discovery.Port {
 	res := []*discovery.Port{}
 	for _, disc := range dm.discoveries {
@@ -151,7 +152,7 @@ func (dm *DiscoveryManager) List() []*discovery.Port {
 	return res
 }
 
-// ListPorts return the current list of ports detected from all discoveries
+// ListSync return the current list of ports detected from all discoveries
 func (dm *DiscoveryManager) ListSync() []*discovery.Port {
 	res := []*discovery.Port{}
 	for _, disc := range dm.discoveries {