docs: Update phrasing, add more related press from 2018
    
    This commit brings the Appreciation Week page of the CommOps docs
    up-to-date. I re-worded some things when I read back because I thought
    they were confusing and could be worded with more clarity.
    
    Additionally, I also started a record of all published articles as part
    of Fedora Happiness Packets 2018. This can be a good way of measuring
    our impact over time by seeing what kind of buzz we drum up by
    organizing this.