Update Workspace limit in docs

[tim-p-allen]

Resolves #3920

What is being addressed

Update Docs to reflect workspace limit and a workaround to extend.

[github-actions]

Unit Test Results

0 tests   0 ✅  0s ⏱️
0 suites  0 💤
0 files    0 ❌

Results for commit 83bcf84.

♻️ This comment has been updated with latest results.

[tim-p-allen]

/help

[github-actions]

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(in response to this comment from @tim-allen-ck)

[tim-p-allen]

/test-force-approve

[github-actions]

🤖 pr-bot 🤖

✅ Marking tests as complete (for commit e202797)

(in response to this comment from @tim-allen-ck)

[marrobi]

LGTM

[Danny-Cooke-CK]

approved

[tim-p-allen]

/test-force-approve

[github-actions]

🤖 pr-bot 🤖

✅ Marking tests as complete (for commit 83bcf84)

(in response to this comment from @tim-allen-ck)