Update README.md

Added group norm summary to collaboration README.md file.

collaboration/README.md

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 # Collaboration
 
-<!-- group norms summary -->
+## Hello again! 😃
+
+Welcome to the Code Catalyst’s collaborations folder 
+where we’re committed to collaborate to ensure the team’s success.
+
+-----------------------------------------------------------------
+
+**Here’s a bird’s eye view of our group norms:**
+
+👂 Active Listening
+
+🤝 Respectful Communication
+
+🤗 Supportive Environment
+
+⏱️ Timely Communication
+
+🧑‍🤝‍🧑 Reintegration After Absences
+
+➕ Positive Support
+
+💝 Appreciation
+
+📝 Documentation and Accountability
+
+✋ Engaged Participation
+
+
+Find the full documentation 
+[here](https://github.com/MIT-Emerging-Talent/ET6-foundations-group-13/blob/main/collaboration/group_norms.md)
 
-<!-- group norms list -->