Community Day: open an issue, then a pull request

[IamLRBA]

What to do

Two contributions, in this order:

1. Open an issue (copy the title and body below).
2. Open a pull request that adds your name.
3. Link the pull request to your issue.

Full walkthrough: CONTRIBUTING.md

Steps

Step	Action
1	Copy the title and body below
2	Click New issue, paste them, replace YOUR NAME, submit
3	Note your issue number (for example #12)
4	Fork, branch, add one line in app/attendees.js
5	Open a pull request and paste Closes #12 in the description (use your number)

When the pull request is merged, GitHub closes your issue automatically.

---

Issue title (copy this)

Attendance: add YOUR NAME

Issue body (copy this)

## Attendance

Add **YOUR NAME** to the Attendance wall.

I will open a pull request for this issue and link it with `Closes #<this issue number>`.

Replace YOUR NAME in both places before you submit.