Fix README typo

README.md

@@ -15,18 +15,18 @@ import (
 
 func main() {
     // Retrieve manga information
-    manga, err := mangadex.GetManga(123)
+    manga, errManga := mangadex.GetManga(123)
     if errManga != nil {
         log.Println("Error retrieving manga: %s", errManga)
     }
 
-    // Retrieve a list of chapters 
+    // Retrieve a list of chapters
     chaptersRequest := NewGetChaptersParams()
     chapters, errChapterList = manga.getChapters(chaptersRequest)
     if errChapterList != nil {
         log.Println("Error retrieving chapters page %d: %s", chaptersRequest.Page, errChapterList)
     }
-        
+
     // Disables chache reads for requests beyond this point
     mangadex.DisableCache()