Update about.html

Metadata

Author: Gmac4247

about.html

@@ -90,6 +90,13 @@
     "@type": "Article",
 	"@id": "https://basic-geometry.github.io#cgs",
 	"name": "Core Geometric System ™",
+	"about":  {
+    "@type": "DefinedTermSet",
+    "name": "Core Geometric System ™",
+	"description": "Universally applicable self-consistent geometric framework of physically grounded exact area and volume calculation formulas for regular shapes.",
+	"disambiguatingDescription": "Not the conventional, abstract approximates.",
+	"url": "https://basic-geometry.github.io"
+	},
 	"author": {
     "@type": "Person",
     "name": "Gaál Sándor",