fix(install): fix install method

.vim_runtime/sources_non_forked/vim-pug/ftplugin/pug.vim

@@ -0,0 +1,57 @@
+" Vim filetype plugin
+" Language: Pug
+" Maintainer: Joshua Borton
+" Credits: Tim Pope
+
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin")
+  finish
+endif
+
+let s:save_cpo = &cpo
+set cpo-=C
+
+setlocal iskeyword+=-
+
+" Define some defaults in case the included ftplugins don't set them.
+let s:undo_ftplugin = ""
+let s:browsefilter = "All Files (*.*)\t*.*\n"
+let s:match_words = ""
+
+runtime! ftplugin/html.vim ftplugin/html_*.vim ftplugin/html/*.vim
+unlet! b:did_ftplugin
+
+" Override our defaults if these were set by an included ftplugin.
+if exists("b:undo_ftplugin")
+  let s:undo_ftplugin = b:undo_ftplugin
+  unlet b:undo_ftplugin
+endif
+if exists("b:browsefilter")
+  let s:browsefilter = b:browsefilter
+  unlet b:browsefilter
+endif
+if exists("b:match_words")
+  let s:match_words = b:match_words
+  unlet b:match_words
+endif
+
+" Change the browse dialog on Win32 to show mainly Haml-related files
+if has("gui_win32")
+  let b:browsefilter="Pug Files (*.pug)\t*.pug\n" . s:browsefilter
+endif
+
+" Load the combined list of match_words for matchit.vim
+if exists("loaded_matchit")
+  let b:match_words = s:match_words
+endif
+
+setlocal comments=://-,:// commentstring=//\ %s
+
+setlocal suffixesadd+=.pug
+
+let b:undo_ftplugin = "setl cms< com< "
+      \ " | unlet! b:browsefilter b:match_words | " . s:undo_ftplugin
+
+let &cpo = s:save_cpo
+
+" vim:set sw=2: