docs: add "Build in Public" challenge (#344)

* chores: rename build-in-public folder

* chores: move old files to archive folder

* docs: add README

* fix: update wording

* Prettified Code!

* fix: minor wording

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Co-authored-by: adiati98 <[email protected]>

monthly-challenges/build-in-public/README.md

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+# Build in Public
+
+In this challenge, we're working on creating a habit of talking about the things we're working on, a plan for continuing progress, and creating a demo for the Virtual Coffee community.
+
+We aim to learn to communicate around a project, show the development process, give confidence, and be proud of any progress made.
+
+> [!TIP]
+> Read our [`facilitator-docs.md`](../facilitators-docs.md) to learn how to handle tasks before and after challenges, as well as the technical guidelines.
+
+## Announcement to Kick-Off the Challenge
+
+📃 **Script Templates**
+
+TBA
+
+## Async Check-Ins
+
+⏳ **Timeline**: Every morning at 8:00 AM ET.
+
+📃 **Script Templates**
+
+**2023**
+
+```text
+Hi friends, it's time for the daily check-in!
+Share your progress with us! 🙌
+
+- What did you do yesterday?
+- What are you doing today?
+- Do you have any blockers?
+```
+
+## Slack Channels
+
+Slack channels that we use for the challenge:
+
+- `#announcement`
+  - Initial announcement.
+- `#monthly-challenge`
+  - Challenge announcements.
+  - Daily progress tracking.
+- `#help-and-pairing`
+  - Questions, help, and support.
+
+## Events
+
+**2023**
+
+- **Demo Day** — on the last Friday of the month.
+
+  On Monday, in the last week of the month, ask members if they want to do a demo day in the `#monthly-challenge` channel on Slack.
+
+  The demo day is typically conducted as a Lunch & Learn session.
+
+  📃 **Script Templates**
+
+  ```text
+  Hey friends!
+
+  In the past, we’ve done a demo day on the last Friday of the month. If you’re interested, respond with a ✋.
+
+  It's usually a short 5 to 10-minute demo, and your project doesn’t have to be complete.
+
+  If you're comfortable, we can put the demo up on YouTube, but we don’t need to. If you'd rather do some feedback session, we can work on that too.
+  ```
+
+---
+
+## Past Challenges
+
+- July 2023
+- [July 2022](https://virtualcoffee.io/monthlychallenges/july-2022)
+- [July 2021](https://virtualcoffee.io/monthlychallenges/july-2021)
+- [June 2021](https://virtualcoffee.io/monthlychallenges/june-2021)
+
+## Past Blog Posts
+
+- **2023**
+  - [Join Virtual Coffee for the Build in Public: The Power of Daily Standup and Demo Challenge](https://dev.to/virtualcoffee/join-virtual-coffee-for-the-build-in-public-the-power-of-daily-standup-and-demo-challenge-35kb)
+  - [Build in Public: Week One Check-in](https://dev.to/virtualcoffee/build-in-public-week-one-check-in-4dai)
+  - [Build in Public: Week Two Check-in](https://dev.to/virtualcoffee/build-in-public-week-two-check-in-2jf5)
+  - [Build in Public: Final Check-in](https://dev.to/virtualcoffee/build-in-public-final-check-in-eij)