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Issue description

In step 2, it mentions the ~/network-review.txt file.

First, the file does not end with a carriage return, so when you cat it out, it does not start your prompt on a new line.

Second, the file only has Name, Range start/end.  It does not have `Neutron pod IP:`, so you have to type in that line.

ADD:

Neutron pod IP: CHANGEME

Third, I wasn't actually expecting that the file would be there.  It would be worth mentioning in this step that the file exists and you should change `CHANGEME` to the right values.

Fourth, I think we should add a hint/requirement that the Neutron networking service is in the OpenStackControlPlane.  If a student start at this point with no other lessons, they would not know that.

Step 2.2 says to retrieve the network CIDR and the IP address range.  We actually don't use/need the CIDR, just the range.  You can remove the wording about network CIDR.

Step 4.  It seems like this step is odd in that it is so simple/small.  Can we do this with a lab script?