Add stale.yml

.github/stale.yml

@@ -0,0 +1,24 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 30
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - API Change
+  - Bug
+  - Design
+  - Doc
+  - Example
+  - Feature
+  - Talk
+# Label to use when marking an issue as stale
+staleLabel: Stale
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been open for a while with no activity, has it
+  been resolved?
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: >
+  It looks like this issue has either been abandoned or resolved so
+  I will go ahead and close it. Feel free to re-open this issue if
+  you feel it needs attention, or open new issues as needed. Thanks!