fix typo in create-volcanoes.md (#1164)

## Changes

Change "**six** unique components" to "**five** unique components".

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Author: MarioChao

content/en-us/tutorials/use-case-tutorials/vfx/create-volcanoes.md

@@ -34,7 +34,7 @@ To create credible volcanoes, it's important to reference real-world volcanic er
 
 <img src="../../../assets/tutorials/creating-volcanoes/Volcano-NoComponents.jpg" alt="A far out view of an Iceland volcanic eruption."  width="80%" />
 
-It's useful to break down a volcano that's erupting into individual components so that you can plan how to utilize different VFX objects to mimic their real-world counterparts. To demonstrate, this tutorial breaks the sample volcano into six unique components:
+It's useful to break down a volcano that's erupting into individual components so that you can plan how to utilize different VFX objects to mimic their real-world counterparts. To demonstrate, this tutorial breaks the sample volcano into five unique components:
 
 - **Surface Ripples** – The small waves of lava on the surface of the caldera.
 - **Embers** – The small, light pieces of molten rock that rise to the sky from the caldera.