Added a screenshot of this text formatting (#84)

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A new screenshot for text formatting based on a status column

* Delete textformatting-status.png

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Added a new screenshot for view formatting based on a text field

* Update README.md

Updated the readme with a new screenshot based on the json example.

view-samples/text-conditional-format/README.md

@@ -4,6 +4,8 @@
 
 This example was adopted from a column formatting example, [Conditional formatting based on the value in a text of choice field](https://github.com/ldemaris/sp-dev-docs/blob/patch-7/docs/declarative-customization/column-formatting.md#conditional-formatting-based-on-the-value-in-a-text-or-choice-field-advanced), with some important differences to apply the concept to list view rows.  The column formatting example applies both an icon and a class to a column based on the value of `@currentField`.  The `additionalRowClass` attribute in view formatting, however, only allows you to specify a class and not an icon.  Additionally, since `@currentField` always resolves to the value of the Title field when referenced inside a view format, this sample refers to the `$Status` field directly to determine which class to apply to the row.
 
+![Formatting based on text field](/view-samples/text-conditional-format/textformatting-status.png)
+
 ## View requirements
 - This format expects a text/choice field with the values of Done, In progress, In review, Blocked, or anything else
 
@@ -28,4 +30,4 @@ Version|Date|Comments
 ## Additional notes
 None
 
-<img src="https://telemetry.sharepointpnp.com/sp-dev-list-formatting/view-samples/text-conditional-format" />
+<img src="https://telemetry.sharepointpnp.com/sp-dev-list-formatting/view-samples/text-conditional-format" />