Updated README.md.

README.md

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 # Browser Guard
-Protect browsers from accessing untrusted websites. A browser extension for the paranoid.
+Protect browsers from accessing untrusted websites. A browser extension for the paranoid.
+
+## How it Works
+Browser Guard intercepts all top-level navigation requests and checks if the destination is on your list of trusted domains. If it is not found, the request is blocked, and you're given the option to temporarily or permanently trust the domain.
+
+## How to Install Browser Guard
+Browser Guard is currently pending in several browser extension stores. A direct link will be provided here once it is listed there. For now, you can download one of the releases and manually install it in your browser of choice, assuming you use one of the following:
+ - Firefox
+ - Chrome
+ - A Chrome-based browser
+
+You can also clone the repository, build the TypeScript files yourself, and install the extension using the `/src` directory in your repository.
+
+## Privacy
+Browser Guard takes your privacy seriously. No data is collected by Browser Guard at any point, an no connections are ever made to any remote servers.