Fix error in dockerd.md for incorrect cluster-store-opts example.
This fix fixes an error in documentation (dockerd.md). In the
example given by dockerd.md, the option `cluster-store-opts`
is assigned with an array but this option can only be assigned
as a map.
@@ -913,7 +913,7 @@ This is a full example of the allowed configuration options in the file:
"pidfile": "",
"graph": "",
"cluster-store": "",
- "cluster-store-opts": [],
+ "cluster-store-opts": {},
"cluster-advertise": "",
"max-concurrent-downloads": 3,
"max-concurrent-uploads": 5,
