Corrections to Chapter 18

There is a small typo in the examples for "attribute-based" selectors given in Part B of Table 18.2, page 460 -- the examples are missing an ending quotation mark to end the attribute value. The corrected entries are (with the correction shown in boldface red text) are:

div[class="section"]	Attribute-based selector (exact value)
div[class~="section"]	Attribute-based selector (possible value)