Improve wording on step "Mount the 2 switches under the Pro Micro"

[rlbaxter]

When I read "2 switches", I grabbed 2 switches and mounted one on each side. It was not clear to me that I needed to mount 4 switches, 2 per side until after I had mounted the pro micros and found I couldn't access the other spot on each side. I felt pretty stupid after. Could we add some clarification here so others don't make the same mistake? A picture or a diagram might be helpful too.

[nicinabox]

Sorry about the goof up. I'd be happy to add an image in for this but my LS is fully assembled so someone else would need to provide a picture at that stage.

[Duckle29]

@rlbaxter Does the wording in the current assembly guide help? if so @nicinabox can close this issue :)