Update astcenc.h comment
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* The codec supports compressing single images, which can be either 2D images or volumetric 3D
* images. Calling code is responsible for any handling of aggregate types, such as mipmap chains,
- * texture arrays, or sliced 3D textures
+ * texture arrays, or sliced 3D textures.
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* Images are passed in as an astcenc_image structure. Inputs can be either 8-bit unorm, 16-bit
* half-float, or 32-bit float, as indicated by the data_type field.
