[Docs] add practical example to improve data management doc #5075

Job	Run time
unpack-envvars	1s
flyteadmin integration tests image / build_docker	4m 46s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	4m 11s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	5m 43s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	4m 18s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	35s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	5m 21s
Dry Run Goreleaser	7m 15s
Test Getting started	4m 14s
Lint (datacatalog) / Run Lint	2m 2s
Lint (flyteadmin) / Run Lint	2m 34s
Lint (flytectl) / Run Lint	1m 37s
Lint (flyteidl) / Run Lint	1m 24s
Check Go Generate (datacatalog) / Go Generate	1m 35s
Check Go Generate (flyteadmin) / Go Generate	1m 54s
Lint (flyteplugins) / Run Lint	2m 23s
Lint (flytepropeller) / Run Lint	2m 39s
Lint (flytestdlib) / Run Lint	2m 16s
Check Go Generate (flytecopilot) / Go Generate	1m 5s
Check Go Generate (flytectl) / Go Generate	1m 9s
Check Go Generate (flytepropeller) / Go Generate	1m 40s
Unit Tests (datacatalog) / Run Unit Test	2m 29s
Unit Tests (flyteadmin) / Run Unit Test	4m 8s
Unit Tests (flytecopilot) / Run Unit Test	2m 8s
Unit Tests (flytectl) / Run Unit Test	3m 9s
Unit Tests (flytepropeller) / Run Unit Test	3m 50s
Unit Tests (flyteplugins) / Run Unit Test	3m 30s
Unit Tests (flytestdlib) / Run Unit Test	3m 13s
Integration Test (flyteadmin) / Integration tests	6m 11s
	1h 27m 20s

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