[help] added links in modules, added learn desktop module
diff --git a/erpnext/config/buying.py b/erpnext/config/buying.py
index 17418c3..7729872 100644
--- a/erpnext/config/buying.py
+++ b/erpnext/config/buying.py
@@ -156,4 +156,14 @@
 				}
 			]
 		},
+		{
+			"label": _("Help"),
+			"items": [
+				{
+					"type": "help",
+					"label": _("Customer and Supplier"),
+					"youtube_id": "anoGi_RpQ20"
+				},
+			]
+		},
 	]