Responsive Accordion is an easy to use module which can have unlimited number of accordion. You can create accordions by just adding the title and contents and publishing it to a module position. This extension can also be placed into an article using loadposition plugin.
Remove Meta Tag Generator is a simple plugin which that helps to remove the meta generator tag from the source code of a Joomla website. The plugin also has the option to remove the Robots tag completely from the website.