Add BPS as Elm company

[woochica]

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• [x] Company name
• [x] Company description
• [x] Company location
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[woochica]

Wish there was a public page where this platform was described. e.g. a Blog post. 💭 Still worth including. 👍

I'm the developer of the Elm app. It's quite a recent project, so far we were focusing on building it :) But I'd also love if we give more visibility to this project, also from the technical perspective. I'll push for it.