Errant double quotes in "Overview - But will you still write software?"

[WesleyDavid]

On page 25 of the printed book, in the Overview, under the "But will you still write software?" section, within the Ras Kasa Williams quote there's a double quote pointing the wrong way, with no spaces between it and the preceding or following word. This error is not seen in the current markdown. Also note that the commit that introduced this line was correct, so it appears that the error isn't in the content found in this repo.