Update config.yml

Author: leecalcote

.github/config.yml

@@ -17,7 +17,9 @@ newPRWelcomeComment: >
 firstPRMergeComment: >
   Thanks for your contribution to the Layer5 community! :tada:
    
-  ![Congrats!](/../../master/.github/welcome/Layer5-celebration.png)
+  ![Congrats!](https://raw.githubusercontent.com/layer5io/learn-layer5/master/.github/welcome/Layer5-celebration.png)
+  
+   	   	    	    	  :star: Please [star the project](../stargazers) if you have yet to do so and sure to join the [community Slack](http://slack.layer5.io/).
 
 
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