[probot-stale] add config
diff --git a/.github/stale.yml b/.github/stale.yml
new file mode 100644
index 0000000..1a4dfad
--- /dev/null
+++ b/.github/stale.yml
@@ -0,0 +1,33 @@
+# Configuration for probot-stale - https://github.com/probot/stale
+
+# Number of days of inactivity before an Issue or Pull Request becomes stale
+daysUntilStale: 7
+
+# Number of days of inactivity before a stale Issue or Pull Request is closed.
+# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
+daysUntilClose: 2
+
+# Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
+exemptLabels:
+ - hotfix
+
+# Set to true to ignore issues in a project (defaults to false)
+exemptProjects: false
+
+# Set to true to ignore issues in a milestone (defaults to false)
+exemptMilestones: true
+
+# Label to use when marking as stale
+staleLabel: inactive
+
+# Comment to post when marking as stale. Set to `false` to disable
+markComment: >
+ This pull request has been automatically marked as stale because it has not had
+ recent activity. It will be closed if no further activity occurs, but it
+ only takes a comment to keep a contribution alive :) Thank you
+ for contributing.
+# Limit the number of actions per hour, from 1-30. Default is 30
+limitPerRun: 30
+
+# Limit to only `issues` or `pulls`
+only: pulls