Update container devflows link to target the right place

[nikhilym]

Description: Developer flow grid has no information under Deploy Containers with Neuron section unlike other sections

This commit updates the grid source to point to the correct developer flow link from the containers folder instead of the incorrect link

Tested the changes on local server

PR Checklist

• [ ] I've completely filled out the form above!
• [ ] (If applicable) I've automated a test to safegaurd my changes from regression.
• [ ] (If applicable) I've posted test collateral to prove my change was effective and not harmful.
• [ ] (If applicable) I've added someone from QA to the list of reviewers. Do this if you didn't make an automated test or feel it's appropriate for another reason.
• [ ] (If applicable) I've reviewed the licenses of updated and new binaries and their dependencies to make sure all licenses are on the pre-approved Amazon license list. See https://inside.amazon.com/en/services/legal/us/OpenSource/Pages/BlessedOpenSourceLicenses.aspx.

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• [ ] I've verified the changes render correctly on RTD (link above)
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• [ ] (If appropriate) I've run tests to verify the contents of the change

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