One of the example was using quotes instead of backticks.
Backticks are the "older" way of doing things, which has a number of
disadvantes:
http://mywiki.wooledge.org/BashFAQ/082
Here I'm more worried about readability as depending on font and "smart"
editor helping on the web, many people may confuse ` with ', it could
end up modifying formatting on makrdown powered website... etc...
Addresses issue #1747.
These additions aren't perfect -- it's unfortunate that I've added
mention of reverse proxies on two separate pages. I don't _think_
these can reasonably be put on the same page -- perhaps a cross
reference?
