Txn Signing step may be confusing for users

[jpitts]

Some users may be confused by the terms "transactions" and "signing" in the same step as these are known as separate actions in Metamask. This may require more explanation describing that transactions are signed before submission to the network, also a depiction of the final outcome after proceeding (how much value will be transferred, etc)), or even a screen shot of metamask showing what it will look like.