chore: Update README to include new packaging formats

Author: TibixDev

README.md

@@ -54,9 +54,11 @@ Before running WinBoat, ensure your system meets the following requirements:
   - [Module loading instructions](https://rentry.org/rmfq2e5e)
 
 ## Downloading
-You can download the latest Linux builds under the [Releases](https://github.com/TibixDev/winboat/releases) tab. We currently offer two variants:
+You can download the latest Linux builds under the [Releases](https://github.com/TibixDev/winboat/releases) tab. We currently offer four variants:
 - **AppImage:** A popular & portable app format which should run fine on most distributions
 - **Unpacked:** The raw unpacked files, simply run the executable (`linux-unpacked/winboat`)
+- **.deb:** The intended format for Debian based distributions
+- **.rpm:** The intended format for Fedora based distributions
 
 ## Known Issues About Container Runtimes
 - Podman is **unsupported** for now