Document how to setup environment variables
Merge branch 'checkout-source-into-virtual-workspace' of https://github.com/logsearch/logsearch-operations into checkout-source-into-virtual-workspace

# By Danny Berger
# Via Danny Berger
* 'checkout-source-into-virtual-workspace' of https://github.com/logsearch/logsearch-operations:
  Fix README.md link