text: Title: Measure region properties example has an error that misses hover over label for first mask
  Body: ### Description:
  
  When you copy the example code at the bottom of this webpage:
  
  https://scikit-image.org/docs/stable/auto_examples/segmentation/plot_regionprops.html
  
  The line:
  for index in range(1, labels.max()):
      label_i = props[index].label
  
  iterates over the proterites starting at 1 which misses the first index and therefore does not plot the first mask with label "1" becasue the property index was actually 0. 
  
  The line should be:
  for index in range(0, labels.max()):
      label_i = props[index].label
  
  Thank you! 
  This example is great and very helpful otherwise! 
  
  ### Way to reproduce:
  
  _No response_
  
  ### Version information:
  
  _No response_