Update 03-etcd.md

shouldn't this be etcd[0..2] instead of controllers?
2016-10-19 11:23:23 -04:00 · 2016-10-19 11:23:23 -04:00 · ef61bc92f2
parent 0450e2b3b7
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--- a/docs/03-etcd.md
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 In this lab you will bootstrap a 3 node etcd cluster. The following virtual machines will be used:

-* controller0
-* controller1
-* controller2
+* etcd0
+* etcd1
+* etcd2

 ## Why