alter readme typo
install latest NGINX server with selected NGINX modules from sources

- check for prior installs and stop any server running on port 80
- visit NGINX website and get latest mainline or stable version
- visit each website of the NGINX modules we want to install
  ( pcre, zlib , openssl ) and get latest version only download if no
  copy present
- if new version available or new module source available then compile
  from source
- do some post install checks then try to run NGINX server
- check NGINX server is operating on port 80

issue: feature #9 install latest nginx from source