Cherrypick from hcmr2: doc change: fix typo in 3.2 version notes

<li>A screen's <em>smallestWidth</em> is it's fundamental minimum size,

measured in density-independent pixel ("dp") units. Of the screen's height or

width, it is the shorter of the two. For a screen in portrait orientation, the

smallestWidth is normally based on its width, while in landscape orientation it based

smallestWidth is normally based on its width, while in landscape orientation it is based

on its height. In all cases, the smallestWidth is derived from a fixed characteristic of the

screen and the value does not change, regardless of orientation. The smallestWidth

is important for applications because it represents the shortest possible width