Link is broken for maven example

[surajnarwade]

Quickstart link in kompose integation section is broken (404)

@piyush1594

[cdrage]

@surajnarwade Mind clarifying what you mean? Your description is a bit confusing. kompose integration? You mean docs/integration.md?

[piyush-garg]

@cdrage The link is not redirecting. I need to add .md extension to filename in link section.