Updated main README to point to correct & complete instructions for this branch, including a link to how to use the public Formhub AMI on AWS, and added better explanations and links about the code structure.
Updated main README to point to correct & complete instructions for this branch, including a link to how to use the public Formhub AMI on AWS, and added better explanations and links about the code structure.

ehealthafrica-ci/formhub,ehealthafrica-ci/formhub,ehealthafrica-ci/formhub,eHealthAfrica/formhub,eHealthAfrica/formhub,ehealthafrica-ci/formhub,eHealthAfrica/formhub,eHealthAfrica/formhub