Return errors properly from gmi2html

bin/gmi2html/gmi2html.go

@@ -22,7 +22,10 @@ func runApp() error {
 		return err
 	}
 
-	html := gmi2html.Gmi2html(string(data), "")
+	html, err := gmi2html.Gmi2html(string(data), "")
+	if err != nil {
+		return err
+	}
 	_, err = fmt.Fprintf(os.Stdout, "%s", html)
 	if err != nil {
 		return err

gmi2html.go

@@ -12,7 +12,7 @@ import (
 // Based on https://geminiprotocol.net/docs/gemtext-specification.gmi
 
 // Gmi2html converts Gemini text to HTML with proper escaping and wraps it in a container with typography-focused CSS
-func Gmi2html(text string, title string) string {
+func Gmi2html(text string, title string) (string, error) {
 	content := convertGeminiContent(text)
 
 	// Handle any template errors with container
@@ -26,10 +26,10 @@ func Gmi2html(text string, title string) string {
 	})
 	if err != nil {
 		fmt.Printf("Error executing container template: %s\n", err)
-		return ""
+		return "", err
 	}
 
-	return buffer.String()
+	return buffer.String(), nil
 }
 
 // convertGeminiContent converts Gemini text to HTML with proper escaping

gmi2html_test.go

@@ -61,7 +61,7 @@ func TestConvertGeminiContent(t *testing.T) {
 
 func TestGmi2html(t *testing.T) {
 	sample := "# Hello Gemini\n\nThis is a test document.\n\n=> https://gemini.circumlunar.space/ Project Gemini"
-	result := Gmi2html(sample, "Gemini Test")
+	result, _ := Gmi2html(sample, "Gemini Test")
 
 	// Check that it contains the expected elements
 	if !strings.Contains(result, "<title>Gemini Test</title>") {

templates.go

@@ -51,7 +51,8 @@ body {
     color: var(--text-color);
     /* background-color: var(--bg-color); */
     max-width: 34rem;
-    margin: 0 auto;
+    /* margin: 0 auto; */
+    margin-left: 2rem;
     padding: 1rem 1rem;
     font-size: 16px;
     text-align: justify;