Updated the reference to the `jekyll serve` which should be `bundle exec jekyll serve`.
Updated the reference to the `jekyll serve` which should be `bundle exec jekyll serve`.

silviurosu/silviurosu.github.io,biomadeira/jasper,silviurosu/silviurosu.github.io,biomadeira/jasper,silviurosu/silviurosu.github.io,biomadeira/jasper