docs: add "Blogging Challenge"

monthly-challenges/blogging-challenge/README.md

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+# Blogging Challenge
+
+A Community Challenge to hit a word count goal for all our tech blogs.
+
+Based off the [NaNoWriMo (National Novel Writing Month)](https://nanowrimo.org/) Challenge, this challenge is the tech take on writing and working together towards the goal while posting on our own blogs.
+
+> [!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.
+
+## Tasks Before the Challenge
+
+⏳ **Timeline**: The latest, one week before the challenge.
+
+✅ **Tasks**:
+
+Prepare the form to add blog post entry.
+
+> [!NOTE]
+> This task is typically handled by one of our Core Team members, Dan Ott.
+
+## Announcement to Kick-Off the Challenge
+
+📃 **Script Templates**
+
+**2023**
+
+```text
+Our new monthly challenge page is up! This month, we’re working to hit 100,000 words written about tech as a community. There’s a link to add your entry on the page, so any blog post you’ve written during the month about tech can be added towards our goal.
+```
+
+## Async Check-Ins
+
+⏳ **Timeline**: Mondays, 9:00 AM ET.
+
+📃 **Script Templates**
+
+**2023**
+
+```text
+It's time for weekly check-ins! What are you writing about this week? Who needs help?
+```
+
+## Slack Channels
+
+Slack channels that we use for the challenge:
+
+- `#announcement`
+  - Initial announcement.
+- `#monthly-challenge`
+  - Challenge announcements.
+  - Async check-ins.
+  - Members' blog posts.
+- `#content-creation`
+  - Members' blog posts.
+
+---
+
+## Past Challenges
+
+- [November 2023](https://virtualcoffee.io/monthlychallenges/nov-2023)
+- [November 2022](https://virtualcoffee.io/monthlychallenges/nov-2022)
+- [November 2021](https://virtualcoffee.io/monthlychallenges/nov-2021)
+- [November 2020](https://virtualcoffee.io/monthlychallenges/nov-2020)
+
+## Past Blog Posts
+
+- **2023**: [Blogging 2023 Monthly Challenge!](https://dev.to/virtualcoffee/blogging-2023-monthly-challenge-3kng)
+- **2022**: [Collective NaNoWriMo: Let's Write Together!](https://dev.to/virtualcoffee/collective-nanowrimo-lets-write-together-350)