docs: Add documentation for installing via winget (#44941)

Simple documentation PR.

Added information for installing on Windows via winget. Added links from
the main README to relevant sections for both macOS and Windows

Release Notes:

- N/A

README.md

@@ -9,7 +9,7 @@ Welcome to Zed, a high-performance, multiplayer code editor from the creators of
 
 ### Installation
 
-On macOS, Linux, and Windows you can [download Zed directly](https://zed.dev/download) or [install Zed via your local package manager](https://zed.dev/docs/linux#installing-via-a-package-manager).
+On macOS, Linux, and Windows you can [download Zed directly](https://zed.dev/download) or install Zed via your local package manager ([macOS](https://zed.dev/docs/installation#macos)/[Linux](https://zed.dev/docs/linux#installing-via-a-package-manager)/[Windows](https://zed.dev/docs/windows#package-managers)).
 
 Other platforms are not yet available:
 

docs/src/installation.md

@@ -22,6 +22,12 @@ brew install --cask zed@preview
 
 Get the latest stable builds via [the download page](https://zed.dev/download). If you want to download our preview build, you can find it on its [releases page](https://zed.dev/releases/preview). After the first manual installation, Zed will periodically check for install updates.
 
+Additionally, you can install Zed using winget:
+
+```sh
+winget install -e --id ZedIndustries.Zed
+```
+
 ### Linux
 
 For most Linux users, the easiest way to install Zed is through our installation script:

docs/src/windows.md

@@ -6,6 +6,14 @@ Get the latest stable builds via [the download page](https://zed.dev/download).
 
 You can also build zed from source, see [these docs](https://zed.dev/docs/development/windows) for instructions.
 
+### Package managers
+
+Additionally, you can install Zed using winget:
+
+```sh
+winget install -e --id ZedIndustries.Zed
+```
+
 ## Uninstall
 
 - Installed via installer: Use `Settings` → `Apps` → `Installed apps`, search for Zed, and click Uninstall.