Git submodules via http not ssh and server base url not localhost

[mshearer0]

1. After cloning the repo and running 'git submodule init' i had to edit the .git/config file to retrieve the server submodule via http rather than ssh:

[submodule "server"]
active = true
url = git@github.com:corda/node-server.git

updated to:

   url = https://github.com/corda/node-server

to avoid a public key error. I could then run git submodule update.

2. On gcp i had to substitute localhost with the ip of the compute engine in /src/store/Actions.js:

export const SERVER_BASE_URL = "http://your_ip_address:8580";

to avoid a 'Network Error' and a failure to initialise the node explorer.