Fix grammatical error in workflow lifecycle docs #3040

Job	Run time
unpack-envvars	1s
Docker Build Images (datacatalog) / build_docker	2m 6s
Docker Build Images (flyteadmin) / build_docker	2m 57s
Docker Build Images (flytecopilot) / build_docker	2m 7s
Docker Build Images (flytepropeller) / build_docker	3m 1s
Build Images / Build & Push Image (datacatalog) / Push to Github Registry	2m 41s
Build Images / Build & Push Image (flyteadmin) / Push to Github Registry	3m 12s
Build Images / Build & Push Image (flytecopilot) / Push to Github Registry	2m 32s
Build Images / Build & Push Image (flytepropeller) / Push to Github Registry	3m 32s
Build Images / Build & Push Image (flytescheduler) / Push to Github Registry	3m 19s
Lint (datacatalog) / Run Lint	2m 24s
Lint (flyteidl) / Run Lint	1m 54s
Lint (flyteadmin) / Run Lint	3m 17s
Lint (flyteplugins) / Run Lint	3m 1s
Lint (flytepropeller) / Run Lint	3m 18s
Unit Tests (datacatalog) / Run Unit Test	3m 6s
Lint (flytestdlib) / Run Lint	2m 41s
Unit Tests (flyteadmin) / Run Unit Test	4m 17s
Unit Tests (flytecopilot) / Run Unit Test	2m 41s
Unit Tests (flyteplugins) / Run Unit Test	4m 5s
Unit Tests (flytestdlib) / Run Unit Test	3m 43s
Unit Tests (flytepropeller) / Run Unit Test	4m 14s
Check Go Generate (datacatalog) / Go Generate	1m 34s
Check Go Generate (flyteadmin) / Go Generate	2m 21s
Check Go Generate (flytecopilot) / Go Generate	1m 28s
Check Go Generate (flytepropeller) / Go Generate	2m 19s
Integration Test (flyteadmin) / Integration tests	5m 48s
	1h 17m 39s

Provide feedback