refactoring project structure

internal/models/yaml.go

@@ -0,0 +1,12 @@
+package models
+
+type yaml struct {
+	Strophes []struct {
+		Lines []struct {
+			Verse   int    `yaml:"verse"`
+			Tet   string `yaml:"text"`
+			Who string `yaml:"who"`
+			To  string `yaml:"to"`
+		} `yaml:"lines"`
+	} `yaml:"strophes"`
+}