Fix required fields

Change-Id: Ic0cc2dbf0a53d8be7144f4c4c9eea1566c986309
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/specification/json/sections/cper-pci-bus.json b/specification/json/sections/cper-pci-bus.json
index 9e6a26f..ae8f426 100644
--- a/specification/json/sections/cper-pci-bus.json
+++ b/specification/json/sections/cper-pci-bus.json
@@ -1,6 +1,7 @@
 {
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "type": "object",
+    "description": "PCI Bus Error Section",
     "required": [],
     "additionalProperties": false,
     "properties": {