Update README.md

README.md

@@ -6,8 +6,11 @@ Each type is represented by 150 objects, making a total of 900 objects.
 
 Grouping:
 id 1-150: blind rivets
+
 id 151-300: clip nuts
+
 id 301-450: nuts
+
 id 451-600: screws
 id 601-750: spread rivets
 id 751-900: fir tree clips