docs(core/operations): update explanation about omitting GET item operation#2212

soyuka merged 2 commits intoapi-platform:4.2api-platform/docs:4.2from

ttskch:feat/core-operations-omitting-get-item-operaionttskch/api-platform-docs:feat/core-operations-omitting-get-item-operaionCopy head branch name to clipboard