Add Help Text with documentation link to Schedules page

[vedaperi]

SUMMARY

Added help text to Schedule form and Schedule detail to provide easy access to scheduling documentation.
Addresses #12399

ISSUE TYPE

• New or Enhanced Feature

COMPONENT NAME

• UI
• Docs

[AlexSCorey]

Veda and I spoke offline and she was able to address all of my concerns. I think this looks good. Well done!

[cypress]

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Test summary

659 • 1 • 782 • 0 • 4

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Run details

Project	AWX - Functional
Status	Failed
Commit	c5b92c0
Started	Jul 7, 2022 8:59 PM
Ended	Jul 7, 2022 11:03 PM
Duration	04:02 💡
OS	Linux Debian - 11.3
Browser	Chrome 99

View run in Cypress Dashboard ➡️

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Failures

	cypress/integration/projects/project-list.spec.js		1
1	Search operations - Projects > can sort Projects by name after performing advanced search

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Flakiness

	credentials/credential-crud.spec.js		1
1	Credentials- Upload > can upload a json file that will clear out current values of all 3 fields and then add values from the file
	management-jobs/management-job-operations.spec.js		3
1	Management jobs > can launch a management job for Cleanup Expired OAuth 2 Tokens
2	Management jobs > can launch a management job for Cleanup Job details with different # of days to be retained
3	Management jobs > can add a schedule to launch a management job

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[InnocentK]

Looks good!