Update developer-guide.md

documentation/developer-guide.md

@@ -34,10 +34,16 @@ gulp bundle --ship
 gulp package-solution --ship
 ```
 
+**OR**
+
+``` powershell
+npm run package
+```
+
 Files to deploy will be available at path `temp\deploy` and the package(*.sppkg) will be available at `sharepoint\solution` path.
 
 Make sure to update the `cdnBasePath` at `config\write-manifests.json` before deployment to the location where you have deployed your assets.
 
 Additional info for deployment is available at [link](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/web-parts/get-started/deploy-web-part-to-cdn "link").
 
-SPFx Documentation: [link](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/sharepoint-framework-overview "link")
+SPFx Documentation: [link](https://docs.microsoft.com/en-us/sharepoint/dev/spfx/sharepoint-framework-overview "link")