Add info about .desktop file in linux quickstart (#7)

* Add info about .desktop file in linux quickstart

* Update quickstart.mdx

* Update quickstart.mdx

* Update quickstart.mdx

* Update quickstart.mdx

* Update quickstart.mdx

* Update quickstart.mdx

* Update quickstart.mdx

* Update quickstart.mdx

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Co-authored-by: Evan Simkowitz <esimkowitz@users.noreply.github.com>

quickstart.mdx

@@ -14,6 +14,21 @@ description: 'After downloading Wave, get up and running quickly'
     1. [Download Wave](https://www.commandline.dev/download) and extract the file
     2. Change to the Wave directory ```cd waveterm-linux-* ```
     3. Run the application:  ```./Wave```
+    
+    While we work on improving the packaging for Linux, you can optionally create a `.desktop` file, allowing you to launch Wave directly.
+    After doing the above steps, create a file named `Wave.desktop`, and add the following, modifying the `Exec` and `Icon` paths to point to your Wave installation:
+    ```
+    [Desktop Entry]
+    Type=Application
+    Name=Wave
+    Icon= /path/to/Wave-linux-*/resources/app/public/waveterm.icns
+    Exec=/path/to/Wave-linux-*/Wave
+    # setting this to true will launch an extra terminal to run the Wave command
+    Terminal=false
+    ```
+    Run `desktop-file-validate Wave.desktop` to validate that the desktop entry is correct, then run `sudo cp Wave.desktop ~/.local/share/applications/Wave.desktop` to copy the entry into your application list.
+    After restarting your desktop environment (or your computer), Wave should be visible in application list, and should be launched by clicking the icon.
+    The `.desktop` file scheme is supported by most commonly used desktop environments such as GNOME, KDE, XFCE, etc. If encounter issues, please consider opening an issue on the GitHub repository.
   </Accordion>
   <Accordion icon="windows" title="WSL Setup">
  .  Wave has support for WSL, tested on Ubuntu and Kali distros