content: How to build for feature phone

[kosamari]

A one to two sentence description of your post This post will include tips and learnings from PROXX project on building web app targeted to smart feature phone (KaiOS)

Target publish date: 2019-7-31

• [ ] Check this box if this is a hard deadline.

Process Make a copy of this template and fill in the proposal and outline sections. When you're finished, drop a link to the doc in the 1st step below and check the box. A member of the web.dev team will assign this ticket to themselves and work as your reviewer to help you complete the remaining steps.

• [ ] 1. I've done my proposal <add a link to your proposal doc>
• [ ] 2. Proposal approved — reviewer checks this
• [ ] 3. I've added a draft to my proposal doc
• [ ] 4. Draft approved — reviewer checks this
• [ ] 5. I've submitted a pull request #<add PR number>
• [ ] 6. Pull request approved — reviewer checks this

[robdodson]

Going to close as stale as it seems like there hasn't been any progress. Happy to reopen if we plan to work on this in the near term.