Update README.md

Author: chhoumann

README.md

@@ -22,7 +22,7 @@ This plugin has not yet been added to the community plugin browser in Obsidian.
 ### Manual Installation
 1. Go to [Releases](https://github.com/chhoumann/MetaEdit/releases) and download the ZIP file from the latest release.
 2. This ZIP file should be extracted in your Obsidian plugins folder. If you don't know where that is, you can go to `Community Plugins` inside Obsidian. There is a folder icon on the right of `Installed Plugins`. Click that and it opens your plugins folder.
-3. Extract the contents of the ZIP file there.
+3. Extract the contents of the ZIP file there - make sure to create a folder called 'metaedit' for the contents, first.
 
 ## API
 You can access the API by using `app.plugins.plugins["metaedit"].api`.