Add content to building a community (#6579)

Adding articles about dev community

src/data/roadmaps/devrel/content/building-a-community@GvmXdWiwITgWzx_f5_ick.md

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-# Building a Community
+# Building a Community
+
+Online developer communities have become the heart of successful DevTools (Developer Tools) go-to-market (GTM) strategies. They provide a platform for developers to connect, collaborate, learn, and share their expertise, ultimately fostering loyalty, driving product adoption, and fueling innovation.
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+Learn more from the following resources:
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+- [@article@Building and Nurturing Online Developer Communities: The Ultimate Guide](https://www.doc-e.ai/post/building-and-nurturing-online-developer-communities-the-ultimate-guide)
+- [@article@10 Proven Strategies for Building a Developer Community That Thrives: A Guide to Inclusion & Engagement](https://dev.to/swati1267/10-proven-strategies-for-building-a-developer-community-that-thrives-a-guide-to-inclusion-engagement-21cm)