Fix heatmap typo

Author: robertoffmoura

plotly/plotlyfig.m

@@ -52,7 +52,7 @@
                 "AxisEqual", false, ...
                 "AspectRatio", [], ...
                 "CameraEye", [], ...
-                "is_headmap_axis", false, ...
+                "is_heatmap_axis", false, ...
                 "FrameDuration", 1, ... % in ms.
                 "FrameTransitionDuration", 0, ... % in ms.
                 "geoRenderType", 'geo', ...
@@ -628,7 +628,7 @@ function validate(obj)
             % update annotations
             for n = 1:obj.State.Figure.NumTexts
                 try
-                    if obj.PlotOptions.is_headmap_axis
+                    if obj.PlotOptions.is_heatmap_axis
                         if ~isempty(obj.State.Text(n).Handle)
                             nanns = length(obj.layout.annotations);
                             axIndex = nanns + obj.getAxisIndex(obj.State.Text(n).AssociatedAxis);

plotly/plotlyfig_aux/core/updateAxis.m

@@ -54,7 +54,7 @@
 
     %-check if heatmap axis-%
     isHeatmapAxis = axisData.Type == "heatmap";
-    obj.PlotOptions.is_headmap_axis = isHeatmapAxis;
+    obj.PlotOptions.is_heatmap_axis = isHeatmapAxis;
 
     %-check if geo-axis-%
     isGeoaxis = isfield(axisData, 'Type') ...