add stale bot

Author: sandrabosk

.github/stale.yml

@@ -0,0 +1,27 @@
+# Disclosure: Please don't make any changes to this file.
+# Your Ironhack team ♥️
+
+# ------------------------------------------------------------------------------- #
+
+# Configuration for probot-stale - https://github.com/probot/stale
+
+# Number of days of inactivity before an Issue or Pull Request becomes stale
+daysUntilStale: 21
+
+# Number of days of inactivity before an Issue or Pull Request with the stale label is closed.
+# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
+daysUntilClose: 7
+
+# Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
+exemptLabels:
+  - bug
+  - enhancement
+
+# Label to use when marking as stale
+staleLabel: stale
+
+# Comment to post when marking as stale. Set to `false` to disable
+markComment: >
+  This pull request has been automatically marked as stale because it didn't have any recent activity. It will be closed if no further activity occurs. Thank you.
+closeComment: >
+  This pull request has been automatically closed. Thank you.