refactoring with internal

internal/config/config.go

@@ -0,0 +1,21 @@
+package config
+
+type Chapter struct{
+	Verses []string 
+	Number int
+}
+
+type Book struct{
+	Chapters []Chapter
+	Version string
+	Name string
+}
+
+type Cfg struct{
+	Book Book
+	ConfigPath string
+	YamlPath string
+	HtmlPath string
+	BookList map[string]int
+	ProperName map[string]struct{}
+}