Merge pull request #28 from DiptoChakrabarty/terr-action

update the readme file

set common env vars in action

setup a terraform backend

destory resources

remove variables file

apply terraform github actions

remove aws credentials requirement from main file

set working directory for actions

develop github action workflows

add a variable tf

change password instance type and attach security group to vpc

create vpc and attach subnets and print output

create a security group

initialize terraform file to create rds