Add installation notes

README.md

@@ -6,6 +6,13 @@ Optimizes your site's robots.txt to reduce server load and CO2 footprint by bloc
 
 [Test this plugin on the WordPress playground](https://playground.wordpress.net/#%7B%22landingPage%22:%22/?robots=1%22,%22features%22:%7B%22networking%22:true%7D,%22steps%22:%5B%7B%22step%22:%22defineWpConfigConsts%22,%22consts%22:%7B%22IS_PLAYGROUND_PREVIEW%22:true%7D%7D,%7B%22step%22:%22login%22,%22username%22:%22admin%22,%22password%22:%22password%22%7D,%7B%22step%22:%22installPlugin%22,%22pluginZipFile%22:%7B%22resource%22:%22url%22,%22url%22:%22https://bypass-cors.altha.workers.dev/https://github.com/Emilia-Capital/eco-friendly-robots-txt/archive/refs/heads/main.zip%22%7D,%22options%22:%7B%22activate%22:true%7D%7D%5D%7D)
 
+## Installation
+
+* Download the plugin [right here](https://github.com/Emilia-Capital/eco-friendly-robots-txt/archive/refs/heads/main.zip) and install it.
+
+> [!WARNING]  
+> The plugin _will_ delete your existing `robots.txt` file, if one exists on your server, although it'll try to back it up. It'll restore it, when it can, when you uninstall the plugin.
+
 ## Development
 
 If you're developing on this plugin, you will probably want to run tests and lint. You can do that by running the following commands: