Fix minor errors in spec, add JSON specification.
diff --git a/specification/json/cper-json.json b/specification/json/cper-json.json
new file mode 100644
index 0000000..e0e7133
--- /dev/null
+++ b/specification/json/cper-json.json
@@ -0,0 +1,43 @@
+{
+    "$id": "cper-json",
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "description": "JSON Schema for the CPER-JSON format, as described in the CPER-JSON specification document.",
+    "type": "object",
+    "required": ["header", "sectionDescriptors", "sections"],
+    "additionalProperties": false,
+    "properties": {
+        "header": {
+            "$ref": "./cper-json-header.json"
+        },
+        "sectionDescriptors": {
+            "type": "array",
+            "items": {
+                "type": "object",
+                "$ref": "./cper-json-section-descriptor.json"
+            }
+        },
+        "sections": {
+            "type": "array",
+            "items": {
+                "type": "object",
+                "oneOf": [
+                    { "$ref": "./sections/cper-generic-processor.json" },
+                    { "$ref": "./sections/cper-ia32x64-processor.json" },
+                    { "$ref": "./sections/cper-arm-processor.json" },
+                    { "$ref": "./sections/cper-memory.json" },
+                    { "$ref": "./sections/cper-memory2.json" },
+                    { "$ref": "./sections/cper-pcie.json" },
+                    { "$ref": "./sections/cper-pci-bus.json" },
+                    { "$ref": "./sections/cper-pci-component.json" },
+                    { "$ref": "./sections/cper-firmware.json" },
+                    { "$ref": "./sections/cper-generic-dmar.json" },
+                    { "$ref": "./sections/cper-vtd-dmar.json" },
+                    { "$ref": "./sections/cper-iommu-dmar.json" },
+                    { "$ref": "./sections/cper-ccix-per.json" },
+                    { "$ref": "./sections/cper-cxl-protocol.json" },
+                    { "$ref": "./sections/cper-cxl-component.json" }
+                ]
+            }
+        }
+    }
+}
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