IBM-Swift/Kitura#217 modified README to use Makefile
IBM-Swift/Kitura#217 modified README to use Makefile

combined steps 3 and 4 for Linux (cloning, installing and building dispatch)

IBM-Swift/Kitura,IBM-Swift/Kitura,naithar/Kitura,naithar/Kitura,IBM-Swift/Kitura,naithar/Kitura,naithar/Kitura,IBM-Swift/Kitura