Update install-sharp.md (vercel#18508)

Co-authored-by: Luis Alvarez D. <[email protected]>

errors/install-sharp.md

@@ -2,27 +2,24 @@
 
 #### Why This Error Occurred
 
-Using Next.js' built-in Image Optimization requires that you install `sharp`.
+Using Next.js' built-in [Image Optimization](https://nextjs.org/docs/basic-features/image-optimization) requires [sharp](https://www.npmjs.com/package/sharp) as a dependency.
 
-Since `sharp` is optional, it may have been skipped if you installed `next` with the [`--no-optional`](https://docs.npmjs.com/cli/install) flag or it may have been skipped if your platform does not support `sharp`.
+You are seeing this error because your OS was unable to [install sharp](https://sharp.pixelplumbing.com/install) properly, either using pre-built binaries or building from source.
 
 #### Possible Ways to Fix It
 
-Option 1: Install the `sharp` package in your project.
+Option 1: Use a different version of Node.js and try to install `sharp` again.
 
 ```bash
 npm i sharp
 # or
 yarn add sharp
 ```
 
-Option 2: Configure an external loader in `next.config.js` such as [imgix](https://imgix.com).
+Option 2: If using macOS, ensure XCode Build Tools are installed and try to install `sharp` again.
 
-```js
-module.exports = {
-  images: {
-    path: 'https://example.com/myaccount/',
-    loader: 'imgix',
-  },
-}
-```
+For example, see [macOS Catalina instructions](https://github.com/nodejs/node-gyp/blob/66c0f0446749caa591ad841cd029b6d5b5c8da42/macOS_Catalina.md).
+
+Option 3: Use a different OS and try to install `sharp` again.
+
+For example, if you're using Windows, try using [WSL](https://docs.microsoft.com/en-us/windows/wsl/about) (Windows Subsystem for Linux).