update schema change

Author: archmoj

test/plot-schema.json

@@ -35043,7 +35043,7 @@
      ]
     },
     "x0": {
-     "description": "Set the image's x position.",
+     "description": "Set the image's x position. The left edge of the image (or the right edge if the x axis is reversed or dx is negative) will be found at xmin=x0-dx/2",
      "dflt": 0,
      "editType": "calc+clearAxisTypes",
      "valType": "any"
@@ -35055,7 +35055,7 @@
      "valType": "subplotid"
     },
     "y0": {
-     "description": "Set the image's y position.",
+     "description": "Set the image's y position. The top edge of the image (or the bottom edge if the y axis is NOT reversed or if dy is negative) will be found at ymin=y0-dy/2. By default when an image trace is included, the y axis will be reversed so that the image is right-side-up, but you can disable this by setting yaxis.autorange=true or by providing an explicit y axis range.",
      "dflt": 0,
      "editType": "calc+clearAxisTypes",
      "valType": "any"