diff --git a/README.md b/README.md
index 3b76af3..83b44f2 100644
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@@ -2,4 +2,7 @@
 
 How do PRs connect to issues?
 
-they are conected through issue #number references
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+they are conected through issue #number references
+these cannot be purged from the issue.
+
+a pr can reference an issue in the sidebar
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