Add installation instructions to README

README.md

@@ -7,3 +7,11 @@ This is a fork of the [🌈Rainbow Brackets](https://github.com/izhangzhihao/int
 - Added support for Rider
 - Restructured the project for easier support of Rider and CLion
 - Removed post-update notification
+
+## Install
+
+1. Visit [Releases](https://github.com/chylex/IntelliJ-Rainbow-Brackets/releases) and download the latest `RainbowBrackets-6.26-chylex-<version>.zip`
+2. Open the IDE and go to **File | Settings | Plugins**
+3. Uninstall any original version of Rainbow Brackets
+4. Click ⚙ and  **Install Plugin from Disk...**
+5. Select the downloaded zip file