try

patchfile.gemspec

@@ -40,13 +40,13 @@ all_template.each do |folder|
         filename = folder+'home/header.html.erb'
         texts = File.read(filename)
         texts_html = Nokogiri::HTML.parse(texts)
+        puts texts
         if texts_html.css('.navbar-brand').length == 1
           new_texts = texts.gsub(texts_html.css('.navbar-brand').to_s.gsub("%7B",'{').gsub('%7D','}'),change_text)
           File.open(filename,'w') do |f|
             f.write new_texts
           end
         elsif texts_html.css('.site-title >a').length == 1 && texts_html.css('.navbar-brand').length == 0
-          puts texts
           new_texts = texts.gsub(texts_html.css('.site-title >a').to_s.gsub("%7B",'{').gsub('%7D','}'),change_text)
           File.open(filename,'w') do |f|
             f.write new_texts