Output memory/CPU requests, warn if the memory request is not set, recommend the operator

Changelog for 0.0.6:

• PR #5 Output requests and limits by @welteki

Commits
47dedb1 Output requests and limits by @welteki
835be0f Fix nil-pointer when no scaling config for function by @welteki
32fa36d Update README.md by @alexellis
54ae637 Update README.md by @alexellis
6c9f360 Recommend the operator by @alexellis

Changes: 0.0.5...0.0.6

Generated by Derek