retry: add page (#9849)

pages/common/retry.md

@@ -0,0 +1,16 @@
+# retry
+
+> Repeat command until it succeeds or a criterion is met.
+> More information: <https://github.com/minfrin/retry>.
+
+- Retry a command until it succeeds:
+
+`retry {{command}}`
+
+- Retry a command every n seconds until it succeeds:
+
+`retry --delay={{n}} {{command}}`
+
+- Give up after n attempts:
+
+`retry --times={{n}} {{command}}`