merged the creating embed link function and the creating direct link …

…function in the method `make_gist_link`.

tools/mkmd.rb

@@ -40,17 +40,11 @@ def make_page_link name
   "[#{fname[6..-4]}](#{PATH + '/md/' + fname})"
 end
 
-=begin
 def make_gist_link name
   "**gist: #{name}**" << "\n" * 2 << \
+  '<http://gist.github.com/' << name << '>' << "\n" * 2 << \
   '<script src="http://gist.github.com/' << name << '.js"></script>'
 end
-=end
-
-def make_gist_link name
-  "**gist: #{name}**" << "\n" * 2 << \
-  '<http://gist.github.com/' << name << '>'
-end
 
 Dir.glob("../md/*.md").each do |file|
   lines = IO.readlines(file)