update description

Signed-off-by: codeSafari10 <[email protected]>

schemas/constructs/core.json

@@ -477,7 +477,7 @@
             },
             "shape-polygon-points": {
               "type": "string",
-              "description": "The points that describe the shape of the node when shape is polygon. The points are given as a space-separated list of x, y pairs, e.g. '0 0 1 1 2 2'."
+              "description": "An array (or a space-separated string) of numbers ranging on [-1, 1], representing alternating x and y values (i.e. x1 y1 x2 y2, x3 y3 ...). This represents the points in the polygon for the node’s shape. The bounding box of the node is given by (-1, -1), (1, -1), (1, 1), (-1, 1). The node’s position is the origin (0, 0 )"
             }
           }
         }