Update 'purple-sweet-potato-salad.md'

purple-sweet-potato-salad.md

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 > Want to know what to do with those purple sweet potatoes - try this crunchy sweet salad that is delicious and flavorful.
 
-<img src="/images/20160531_110405.jpg" width=200>
+<img src="images/20160531_110405.jpg" width=200>
 
 ### Ingredients