Change links from pluggable discovery RFC to official docs

Author: silvanocerza

arduino/cores/packagemanager/loader.go

@@ -666,7 +666,7 @@ func (pm *PackageManager) loadDiscoveries(release *cores.PlatformRelease) []*sta
 	delete(discoveryIDs, "required")
 	// Get the list of tools only if there are discoveries that use Direct discovery integration.
 	// See:
-	// https://github.com/arduino/tooling-rfcs/blob/main/RFCs/0002-pluggable-discovery.md#direct-discovery-integration-not-recommended
+	// https://arduino.github.io/arduino-cli/latest/platform-specification/#pluggable-discovery
 	// We need the tools only in that case since we might need some tool's
 	// runtime properties to expand the discovery pattern to run it correctly.
 	var tools []*cores.ToolRelease

commands/upload/upload.go

@@ -84,7 +84,7 @@ func getToolID(props *properties.Map, action, protocol string) (string, error) {
 		return t, nil
 	} else if t, ok := props.GetOk(defaultToolProperty); ok {
 		// Fallback for platform that don't support the specified protocol for specified action:
-		// https://github.com/arduino/tooling-rfcs/blob/main/RFCs/0002-pluggable-discovery.md#support-for-default-fallback-allows-upload-without-a-port
+		// https://arduino.github.io/arduino-cli/latest/platform-specification/#sketch-upload-configuration
 		return t, nil
 	}
 	return "", fmt.Errorf("cannot find tool: undefined '%s' property", toolProperty)
@@ -300,7 +300,7 @@ func runProgramAction(pm *packagemanager.PackageManager,
 	// Certain tools require the user to provide custom fields at run time,
 	// if they've been provided set them
 	// For more info:
-	// https://github.com/arduino/tooling-rfcs/blob/main/RFCs/0002-pluggable-discovery.md#user-provided-fields
+	// https://arduino.github.io/arduino-cli/latest/platform-specification/#user-provided-fields
 	for name, value := range userFields {
 		uploadProperties.Set(fmt.Sprintf("%s.field.%s", action, name), value)
 	}

rpc/cc/arduino/cli/commands/v1/upload.pb.go

@@ -57,7 +57,7 @@ message UploadRequest {
   // or in any case fields that can be customized by the user at upload time
   // and cannot be known previously.
   // For more info:
-  // https://github.com/arduino/tooling-rfcs/blob/main/RFCs/0002-pluggable-discovery.md#user-provided-fields
+  // https://arduino.github.io/arduino-cli/latest/platform-specification/#user-provided-fields
   map<string, string> user_fields = 11;
 }
 
@@ -101,7 +101,7 @@ message UploadUsingProgrammerRequest {
   // or in any case fields that can be customized by the user at upload time
   // and cannot be known previously.
   // For more info:
-  // https://github.com/arduino/tooling-rfcs/blob/main/RFCs/0002-pluggable-discovery.md#user-provided-fields
+  // https://arduino.github.io/arduino-cli/latest/platform-specification/#user-provided-fields
   map<string, string> user_fields = 11;
 }
 
@@ -133,7 +133,7 @@ message BurnBootloaderRequest {
   // or in any case fields that can be customized by the user at upload time
   // and cannot be known previously.
   // For more info:
-  // https://github.com/arduino/tooling-rfcs/blob/main/RFCs/0002-pluggable-discovery.md#user-provided-fields
+  // https://arduino.github.io/arduino-cli/latest/platform-specification/#user-provided-fields
   map<string, string> user_fields = 11;
 }