Remove embedded javascript file

debian/changelog

-ruby-markdown-it-html5-embed (1.0.0-1) unstable; urgency=medium
+ruby-markdown-it-html5-embed (1.0.0+dfsg-1) unstable; urgency=medium
 
   * Initial release (Closes: #897676)
 

debian/copyright

 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Upstream-Name: markdown-it-html5-embed
 Source: https://github.com/cmrd-senya/markdown-it-html5-embed
+Files-Excluded: lib/assets/javascripts/markdown-it-html5-embed.js
 
 Files: *
 Copyright: 2015 cmrd Senya <https://socializer.cc/u/senya>

debian/watch

 version=3
+opts=\
+repacksuffix=+ds,\
+repack,compression=xz,\
+dversionmangle=s/\+(debian|dfsg|ds|deb)(\.\d+)?$//,\
+filenamemangle=s/.*\/v?([\d\.-]+)\.tar\.gz/ruby-markdown-it-html5-embed-$1.tar.gz/ \
 https://gemwatch.debian.net/markdown-it-html5-embed .*/markdown-it-html5-embed-(.*).tar.gz