Update docs

README.md

@@ -5,9 +5,9 @@ when your computer is idle. It works on systems with X11, such as GNU/Linux.
 
 ## Installation
 
-* Clone this repository: `git clone https://github.com/andreyv/hexchat-autoaway.git`,
-  or download the [ZIP file](https://github.com/andreyv/hexchat-autoaway/archive/master.zip)
-* Move to the `hexchat-autoaway` directory and type `make`
+* Go to the [Releases](https://github.com/andreyv/hexchat-autoaway/releases)
+  page and download the latest version
+* Unpack the archive, move to the `hexchat-autoaway` directory and type `make`
 * Copy the resulting `autoaway.so` file to `~/.config/hexchat/addons`
   (create this directory if it doesn't exist)