Update chromium installation instructions

README.md

@@ -35,18 +35,18 @@ the [latest release](https://github.com/aokellermann/nexus-now/releases). The `.
 gecko-based browsers (firefox), and the `.crx` installer should work for Chromium-based browsers (basically everything
 else).
 
-### Chrome
+### Chrome/Edge
 
-1. Go to the [latest release](https://github.com/aokellermann/nexus-now/releases) and download the `.crx` file.
-2. Go to the webpage [chrome://extensions/](chrome://extensions/) and make sure the toggle `Developer mode` is on in the
-   top right corner of the page. This will allow you to install extensions unaffiliated with the Chrome Web Store.
-3. Drag the downloaded `.crx` file anywhere onto the page to install the extension.
+#### Windows/MacOS
+
+1. Go to the [latest release](https://github.com/aokellermann/nexus-now/releases) and download the `chromium.zip` file.
+2. Go to the webpage [chrome://extensions/](chrome://extensions/) and make sure the toggle `Developer mode` is on. This will allow you to install extensions unaffiliated with the Chrome Web Store.
+3. Drag the downloaded `.zip` file anywhere onto the page to install the extension.
 
-### Edge
+#### Linux
 
 1. Go to the [latest release](https://github.com/aokellermann/nexus-now/releases) and download the `.crx` file.
-2. Go to the webpage [edge://extensions/](edge://extensions/) and make sure the toggle `Developer mode` is on in the
-   left side of the page. This will allow you to install extensions unaffiliated with the Microsoft Store.
+2. Go to the webpage [chrome://extensions/](chrome://extensions/) and make sure the toggle `Developer mode` is on. This will allow you to install extensions unaffiliated with the Chrome Web Store.
 3. Drag the downloaded `.crx` file anywhere onto the page to install the extension.
 
 ### Firefox