"Unrecognized inline tag" warnings ("dot." and "ws-name") in tests

[apjanke]

Let's try to clean this up, shall we?

[ronn-ng] $ bundle exec rake test | cat
Loaded suite /usr/local/lib/ruby/gems/2.7.0/bin/rake
Started
......................................warn: unrecognized inline tag: ["dot."]
............warn: unrecognized inline tag: ["ws-name"]
warn: unrecognized inline tag: ["ws-name"]
....................
Finished in 13.130951 seconds.
-------------------------------------------------------------------------------
70 tests, 112 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed
-------------------------------------------------------------------------------
5.33 tests/s, 8.53 assertions/s
[ronn-ng] $

See also: #44 "When generating html, ronn-ng may convert ws-name...".