message: updated chart demo tab layout
diff: <fieldset>
  <legend>Line Chart</legend>
  <h3>Slide 7</h3>
  - <div class="chkRow"><div class="iconSvg size16 yes"></div>Line Smoothing, Shadow, Size, Symbol Size</div>
  + <div class="chkRow"><div class="iconSvg size16 yes"></div>Line Smoothing,<br>Shadow,<br>Size,<br>Symbol Size</div>
  <h3>Slide 8</h3>
  - <div class="chkRow"><div class="iconSvg size16 yes"></div>lineDataSymbol and SymbolSize</div>
  + <div class="chkRow"><div class="iconSvg size16 yes"></div>lineDataSymbol,<br>SymbolSize</div>
  <h3>Slide 9</h3>
  <div class="chkRow"><div class="iconSvg size16 yes"></div>Lots of Categories</div>
  </fieldset>
  