add more documentation links

Author: jbritain

src/content/docs/current/Reference/Mod Support/colorwheel.mdx

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+---
+title: Colorwheel (Flywheel/Create)
+---
+
+
+<a href="\https://djefrey.github.io/colorwheel/" target="_blank" >Colorwheel Documentation</a>

src/content/docs/current/Reference/Mod Support/distant_horizons.mdx

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 ---
 title: Distant Horizons
 description: How to support Distant Horizons in your shader.
-sidebar:
-  order: 1
 ---
 
 [Distant Horizons](https://modrinth.com/mod/distanthorizons) is a mod which enables far greater render distances through the use of LODs. Iris allows shaders to integrate with this mod, ensuring that the blend between the vanilla terrain and the DH terrain can be seamless.

src/content/docs/current/Reference/Mod Support/photonics.mdx

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+---
+title: Photonics
+---
+
+<a href="https://github.com/Redi2Go/PhotonicEngine/wiki" target="_blank">Photonics Documentation</a>

src/content/docs/current/Reference/Mod Support/vivecraft.mdx

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 ---
 title: Vivecraft
 description: How to add special Vivecraft integration.
-sidebar:
-  order: 1
 ---
 
 [Vivecraft](https://modrinth.com/mod/vivecraft) is a mod which allows Minecraft to be played in VR. Vivecraft provides a few macros and uniforms to inform shaders about the current render state. Data mentioned here is managed by Vivecraft itself, so if you encounter an issue, please report them on their [issue tracker](https://github.com/Vivecraft/VivecraftMod/issues).

src/content/docs/current/Reference/Mod Support/voxy.mdx

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+---
+title: Voxy
+---
+
+See the `#docs` channel in <a href="https://discord.gg/teErFatQv9" target="_blank">Cortex's Discord Server</a>.