Add support for appendices: landscape diagrams, tables, and images; implement Kroki URL configurability; enhance directive parsing logic.

main.go

@@ -11,8 +11,11 @@ import (
 func main() {
 	inputMd := flag.String("i", "report.md", "Input Markdown file")
 	outputPdf := flag.String("o", "projektarbeit.pdf", "Output PDF file")
+	kroki := flag.String("kroki", "https://kroki.io", "Kroki base URL (e.g. http://localhost:8000 for a local instance)")
 	flag.Parse()
 
+	krokiBaseURL = *kroki
+
 	config, doc, content, err := ParseMarkdown(*inputMd)
 	if err != nil {
 		log.Fatalf("Failed to parse input: %v", err)