Update src/plots/cartesian/layout_attributes.js

Co-authored-by: Liam Connors <liam@plot.ly>

Author: archmoj

src/plots/cartesian/layout_attributes.js

@@ -280,7 +280,8 @@ module.exports = {
             'Determines whether or not the range of this axis is',
             'computed in relation to the input data.',
             'See `rangemode` for more info.',
-            'If `range` is provided, then `autorange` is set to *false*.',
+            'If `range` is provided and it has a value for both the',
+            ' lower and upper bound, `autorange` is set to *false*.',
             'Using *min* applies autorange only to set the minimum.',
             'Using *max* applies autorange only to set the maximum.',
             'Using *min reversed* applies autorange only to set the minimum on a reversed axis.',