fix image in link out

README.md

@@ -34,7 +34,7 @@ MIMIC-III is available on AWS (and MIMIC-IV will be available in the future). Us
 
 To start this deployment, click the Launch Stack button.  On the first screen, the template link has already been specified, so just click next.  On the second screen, provide a Stack name (letters and numbers) and click next, on the third screen, just click next.  On the forth screen, at the bottom, there is a box that says **I acknowledge that AWS CloudFormation might create IAM resources.**.  Check that box, and then click **Create**.  Once the Stack has complete deploying, look at the **Outputs** tab of the AWS CloudFormation console for links to your Juypter Notebooks instance.
 
-[![cloudformation-launch-stack](buildmimic/aws-athena/cloudformation-launch-stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=MIMIC&templateURL=https://aws-bigdata-blog.s3.amazonaws.com/artifacts/biomedical-informatics-studies/mimic-iii-athena.yaml)
+[![cloudformation-launch-stack](/mimic-iii/buildmimic/aws-athena/cloudformation-launch-stack.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=MIMIC&templateURL=https://aws-bigdata-blog.s3.amazonaws.com/artifacts/biomedical-informatics-studies/mimic-iii-athena.yaml)
 
 ## Other useful tools