add convention for plugin location (relates to #13879)

[AmiStrn]

Description

adding convention for where plugin code should be

Issues Resolved

opensearch-project/OpenSearch#13879

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[andrross]

A few wording nitpicks, but overall I like it

[AmiStrn]

A few wording nitpicks, but overall I like it

Thanks @andrross :)
accepted the changes

[AmiStrn]

awaiting a second reviewer: @dblock @VachaShah @andrross @saratvemulapalli

[AmiStrn]

oh sorry @andrross i didn't see you are not on the maintainer list for this repo. thanks for the review though.
@dblock
@VachaShah
@saratvemulapalli
@ohltyler

[andrross]

oh sorry @andrross i didn't see you are not on the maintainer list for this repo

And here I thought you just really valued my opinion :)

[AmiStrn]

oh sorry @andrross i didn't see you are not on the maintainer list for this repo

And here I thought you just really valued my opinion :)

lol, that is NOT how I wished to come across. sarcasm aside (some have told me I am incapable of sarcasm), your opinion is very much valued!

[dblock]

I made some nitpicky comments, feel free to use/ignore/resolve.

[AmiStrn]

need one other approval for this one 🙏

[dblock]

I pinged @VachaShah for #229.