Update insecure.md

Hi，I‘m back 🐶
2018-02-14 11:35:57 +08:00 · 2018-02-14 11:35:57 +08:00 · 947af10cc0
parent 1edd9dcccc
commit 947af10cc0
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--- a/docs/insecure.md
+++ b/docs/insecure.md
@ -105,7 +105,7 @@ This is more secure than the insecure registry solution.

 ## Troubleshoot insecure registry

-This sections lists some common failures and how to recover from them.
+This section lists some common failures and how to recover from them.

 ### Failing...