Added screenshots.

Author: michaellwest

README.md

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 # DataSync
 Starter kit for building data integrations.
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+![image](https://user-images.githubusercontent.com/933163/61093064-5b505700-a40e-11e9-927f-ce09af6ba9a5.png)
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+![image](https://user-images.githubusercontent.com/933163/61093069-61dece80-a40e-11e9-98af-d4271a6644ea.png)
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+![image](https://user-images.githubusercontent.com/933163/61093075-67d4af80-a40e-11e9-9db8-9cef07d7eb97.png)
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+## Resources
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+- Check out [the article](https://xcentium.com/blog/2019/06/15/sitecore-spe---data-sync-extension) written by a Aaron Bickle.