Add "Emma Hacker Card" Board

[MeMMa137]

Submission Checklist:

• [x] I am a current high school, middle school, or home schooled student.

  • [x] I am 18 or under
  • [ ] I have filled out the verification form

• [x] I have joined the #electronics channel on Slack

• [x] I made this board from scratch, even if I followed a tutorial

• [x] I have followed the directions in README.md

  • [x] Created a folder under onboard/projects
  • [x] Filled out TEMPLATE.md as README.md inside your project folder
  • [x] Uploaded gerber.zip and schematic.pdf inside your project folder
  • [x] Created a folder called src and uploaded design files
  • [x] Uploaded screenshot of PCB order called cart.png with all costs included
  • [x] I am ordering the smallest batch size (ie. JLCPCB's smallest order is for 5 boards)
  • [x] If outside the US I've checked that I can afford the customs charges in my country (which isn't covered by the grant)

• [ ] (Optional) This project is from a tutorial[^1].

• [ ] (Optional) This project is for OnBoard Live[^2].

• [ ] (Optional) I'm in a FIRST (FRC, FTC, FLL, etc.) team. The number is: ____

[^1]: Projects from a tutorial are 100% fine! We just want to ask so we can count how people are using tutorials. [^2]: OnBoard Live is a special version of OnBoard where you can earn more money for designing advanced boards. Check out the #onboard-live channel on our Slack!

[prophetorpheus]

Hi, I'm Orpheus Leap! Here to help you review your PR. Cannot find a file describing your project called "README.md". Happy OnBoarding! _{This bot is a simpler helper for common submission types. If there's an error with this, please point it out and someone from the OnBoard team will look at it manually.}