Improve plugin and theme usage docs #3
Description
Provide step-by-step instructions on how to "install" plugins and themes in Pico.
- Either upload a single plugin file directly to the
plugins/directory or upload multiple plugin files into a to-be-created directory named exactly after the plugin - Upload themes to the
themes/directory - Explain that some plugins and themes don't just consist of the actual plugin/theme files, but rather also include themes or content files which should be uploaded to the appropriate Pico directory
- Firmly refer to the
README.mdof the plugin/theme
However: Keep it short! Users don't want to read pages over pages just to learn how to install a plugin/theme... It's dead simple. This shouldn't require much text.