1-1-3-HelloD3D11: Explain INPUT_ELEMENT_DESC better

[deccer]

Jkr suggests that the elements should be explained in more detail

[16-Bit-Dog]

I'll hop on doing this issue next

[16-Bit-Dog]

turns out issue is the wrong name- so prior work is irrelevant and this issue will be renamed

[16-Bit-Dog]

#126 (tagging)

[deccer]

fixed with !126