Update README.md

Author: SudKul

README.md

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+# Deprecated Repository
+This repository is deprecated. Currently enrolled learners, if any, can: 
+- Utilize the https://knowledge.udacity.com/ forum to seek help on content-specific issues.
+- [Submit a support ticket](https://udacity.zendesk.com/hc/en-us/requests/new) if (learners are) blocked due to other reasons. 
+
+
 # machine-learning
 Content for Udacity's Machine Learning curriculum, which includes projects and their descriptions.