redcarpet in rdiscount mode (RedcarpetCompat) renders *foo*’s literally instead of providing emphasis. If I write the right single quote as an entity: *foo*&#rsquo;s then rdiscount, redcarpet and RedcarpetCompat all render the emphasis. This problem did show up in GitHub’s rendering of README.md. Thanks to Trevor for pointing out redcarpet and RedcarpetCompat: #2 (comment)
Even though some Markdown interpreters do not give special meaning to these particular underscores (because they were inside asterisks?), they should be escaped so that some other Markdown interpreter (e.g. redcarpet in its "native" mode) will not interpret them as emphasis/strong delimiters. Tested with rdiscount, redcarpet and RedcarpetCompat. This problem did NOT show up when GitHub renders README.md (they use RedCarpetCompat?), but it is probably good to fix it anyway since it does confuse the default redcarpet.
I would not want someone to think that `tmux kill-server` could be used to simply "Restart [their] *tmux* server" (i.e. the topic of the list item) without losing all of their existing sessions, windows, panes, processes, etc. Also, kill trailing whitespace introduced in the commit that introduced `kill-server`.