Document how Fences works with Views (new fields, not existing ones)

A minor note: would be worthwhile to add a README.txt file describing that Fences will pre-configure new fields added to Views, but existing fields will need to be manually modified to make them aligned with the default Fences functionality.

The changes listed here (https://drupal.org/node/1300576) seem to cover most of what Fences does when a new Views field is added, but the text below has some slight adjustments based on what I see happening. Feel free to add or modify this appropriately. Thanks.

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README.txt

When adding new fields to Drupal Views, the Fences module will configure field settings to create leaner markup. For Views fields created prior to installing and configuring the Fences module, it is necessary to manually modify the field settings to match what Fences does by default with new fields. The same settings can be accomplished by doing the following after clicking each link in Views to configure an existing field:

1) Deselect "Create a label"
2) Expand the "Style Settings" fieldset
3) Select "Customize field HTML" --> Set "HTML element" to "- None -"
4) Select "Customize field and label wrapper HTML" --> Set "Wrapper HTML element" to "- None -"
5) Deselect "Add default classes"
6) Select "Use field template"
7) Apply changes to the field
8) Save the view

After these steps have been completed, the markup of existing fields should match what Fences creates for new Views fields.