Update 3.3.2 understanding doc and g167 technique #4102
+25
−3
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closes #4088
includes new icon-button example in G167 to showcase how a button represented by an icon alone can be used in certain instances for labeling form fields
also updates the understanding doc to provide two new written examples to the examples section list.
One to not make someone have to know to look to g167 to understand that "icons" can also serve as labels
And the second to provide an example of how two websites could have the same sort of input, but one needs instructions (due to extra requirements) while another doesn't (because they are super chill).