Currently, the website does not appear at all in search engine results
for "linux" or "get linux" or "what is linux". This is the result of the
usage of the term "GNU/Linux" everywhere on the website. Hence, when
searching for "what is gnu linux" our website is often listed on top.
But people don't usually include "GNU" when searching for "Linux"
because they probably never heard of GNU. So we need to do some SEO so
that our website shows up in searches for "what is linux" as well.

This updates the "description" meta tag descriptions to use the term
"Linux" instead of "GNU/Linux". Hopefully search engines will pick this
up.