Step 6.2 in the documentation is not clear

I was walking through the documentation and had difficulties on step 6.2

`sam build --use-container --parameter-overrides layerarn=`

I tried this with the OutputValue for the LayerVersionArn (i.e. arn:aws:lambda:us-east-2:XXXXXXXXXXXX:layer:TokenizeData:1) and it didn't work

To get past this point I needed to drop the last part of the value after the accountID (so arn:aws:lambda:us-east-2:XXXXXXXXXXXX)

Maybe this is more obvious to more experienced users but think it should be clarified