Add note to HACKING about setting up for multi-tenancy. Closes #122.
Add note to HACKING about setting up for multi-tenancy. Closes #122.

oneclickorgs/one-click-orgs-deployment,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs-deployment,oneclickorgs/one-click-orgs-deployment