Fix memory resource unit for CRD deployment example in README.md

[Curt-Park]

AS-IS

    resources:
        limits:
            cpu: "500m"
            memory: "512m"
        requests:
            cpu: "250m"
            memory: "128m"

512m for memory means 0.512 bytes. It doesn't look intended for this example.

Pay attention to the case of the suffixes. If you request 400m of memory, this is a request for 0.4 bytes. Someone who types that probably meant to ask for 400 mebibytes (400Mi) or 400 megabytes (400M).

https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/#meaning-of-memory

TO-BE

    resources:
        limits:
            cpu: "500m"
            memory: "512Mi"
        requests:
            cpu: "250m"
            memory: "128Mi"

The memory resource unit for mebibytes is Mi. (megabytes is M)

[yetone]

LGTM