diff --git a/docs/_communities/05-air-traffic-control-simulator.md b/docs/_communities/04-air-traffic-control-simulator.md
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rename from docs/_communities/05-air-traffic-control-simulator.md
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diff --git a/docs/_communities/04-devkit-painter.md b/docs/_communities/04-devkit-painter.md
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----
-title: "Pixelcraft - A IoT DevKit Painter"
-link: "http://pixelcraft.cc/"
-excerpt: "Paint the pixels or import an image to modify on IoT DevKit screen, all within browser now."
-header:
-  image: /assets/images/communities-pixelcraft.jpg
-  teaser: /assets/images/communities-pixelcraft-th.jpg
-contributor:
-  github_id: Zhe Li
-  github_url: "https://github.com/Sneezry"
-  github_avatar_url: "https://avatars1.githubusercontent.com/u/1621293?s=60&v=4"
-difficulty: EASY
-last_modified_at: 2018-02-02
----
-
-This article describes how to use Pixcelcraft tool to paint or modify an imported image to display on IoT DevKit screen. Kudos to Zhe Li.
diff --git a/docs/_communities/06-your-ideas.md b/docs/_communities/05-your-ideas.md
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