Merge CE and EE Help Text features

• dev issue: https://dev.gitlab.org/gitlab/gitlab-ee/issues/343

Help text was an EE feature. However, recently the same feature landed in CE - https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/1309.

We need to merge it to a single feature.

@dzaporozhets, @JobV

Title changed from **Merge CE and EE Help Text features ** to Merge CE and EE Help Text features

Milestone changed to 8.5

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Added technical debt label

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added ~480950 label

@mydigitalself As you can see, this has been on our radar for close to 2 years :) When shall we do this?

removed milestone

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Close it? No thumbs up and if it's been moved over 7 releases without even a peep, I think it's not important.

closed

mentioned in merge request !14785