chore(deps): update dependency markly to v0.16.0 (#264)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Gemfile.lock

@@ -77,7 +77,7 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.7.0)
-    markly (0.15.3)
+    markly (0.16.0)
     memoist3 (1.0.0)
     mini_mime (1.1.5)
     minitest (6.0.2)