Update slide 8.4
Update slide 8.4

remove ".NET" listing as a language and updated "Visual Basic" (not supported) to "Visual Basic .NET"
womenwhocodedc/thelanguagesoflanguages,kdmcclin/thelanguagesoflanguages,kdmcclin/thelanguagesoflanguages,womenwhocodedc/thelanguagesoflanguages